The reaction is spontaneous at high temperatures, and non-spontaneous at low temperatures.
In a thermodynamically closed system, the measure of the non-expansion work by the system and the enthalpy and the entropy is said to be the Gibbs free energy.
How to determine the Gibbs free energy?According to the reaction, the enthalpy change [tex](\rm \Delta H)[/tex] and the change in the entropy [tex](\rm \Delta S)[/tex] is positive. The Gibbs free energy is given by, [tex]\rm \Delta G = \Delta H - T \Delta S[/tex] and the reaction will be spontaneous only when the [tex]\rm\Delta G[/tex] is negative.
If there is not much effect on the enthalpy and entropy due to a decrease in temperature, then the value of the Gibbs free energy will be positive and will be close to that of the enthalpy change. In the above reaction enthalpy, change is positive and hence the reaction will be non-spontaneous.
When the temperature is increased then the entropy will affect the overall reaction as the Gibbs free energy will have the opposite sign as that of the entropy. So the reaction will become spontaneous at high temperatures.
Thus, option A is correct.
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Answer:
A) spontaneous at high temperatures, nonspontaneous at low temperatures
Explanation:
EDGE 2022
Which statements about a sodium atom (22/11 Na ), are correct?
What two structures in plant leaves help prevent the loss of water?.
Answer:
Upper cuticle and guard cells
The number of valence electrons of an element can be
deduced from its location in the periodic table.
Answer:
You can easily determine the number of valence electrons an atom can have by looking at its Group in the periodic table. For example, atoms in Groups 1 and 2 have 1 and 2 valence electrons, respectively. Atoms in Groups 13 and 18 have 3 and 8 valence electrons, respectively.
What energy is associated with random motion of particles in a sample of gas.
Answer:
internal energy
Explanation:
molecule of oxygen (O2) has a speed of 473 m/s at a certain temperature. Determine the speed of the molecule in kilometers per hour (km/h).
Please show work.
You can use dimensional analysis to answer this question.
[tex]=\frac{473\ m}{1\ s}[/tex] × [tex]\frac{1\ km}{1000\ m}[/tex] × [tex]\frac{60\ s}{1\ min}[/tex] × [tex]\frac{60\ min}{1\ hour}[/tex]
= 1702.8 km/h
If you did this correctly, all your units should cancel out, leaving you with km/h
Molecules have been defined by the two or more elements joined chemically. The speed of oxygen molecules in kilometers per hour (km/h) will be 1702.8 km/h.
What is speed?Speed has been defined as the rate at which the particle or the object moves from one point to another. It has been defined as the pace that is given by the distance traveled by the object in a period of time.
The international system of Units (SI unit) for speed is m/s where the distance is in meters and time in seconds. The units from m/s are converted into Km/hr by dimensional analysis as:
Given,
Speed = 473 m/s
It is known that 1 m = 1 ÷ 1000 km
So, 473 m = 0.473 km
Similarly, 1 hour = 60 minutes
And 60 minutes = 3600 seconds
(0.43 km × 60 sec × 60 minutes) ÷ (1 sec × 1 minute × 1 hour)
= 1702.8 km/h
Therefore, the speed is 1702.8 km/h.
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Where does the radiation for the EM spectrum originate from?
Answer:
produced whenever a charged particle, such as an electron
Explanation:
Electromagnetic radiation is produced whenever a charged particle, such as an electron, changes its velocity—i.e., whenever it is accelerated or decelerated. The energy of the electromagnetic radiation thus produced comes from the charged particle and is therefore lost by it.
Which type of compound does not contain a carbonyl group?.
Can someone please notice me explain the other parts such as the petal and receptacle do in the flower. Pretty please put in your own words I can’t use the internet so please use your own words
The receptacle or torus (an earlier name, thalamus, as in Thalamiflorae) is the thickened section of a stem (pedicel) from which the flower organs develop in angiosperms. The receptacle of some accessory fruits, such as the pome and strawberry, gives birth to the edible section of the fruit. Receptacle: The section of a flower stem to which the flower's components are connected. Sepal: The outer components of the flower that envelop a growing bud (typically green and leaf-like). Petals are the sections of a flower that are frequently brightly coloreda
Calculate the wave speedo of a wave that has a wavelength of 4 m and a frequency of 4 Hz. (V).
Answer:
229,792,458
Explanation:
if it isnt this just ask again
How many silver atoms are there in 3. 86 g of silver?.
Answer:
How many atoms are there in 1g of silver approximately? The atomic weight of silver is 108. Thus number of moles of silver in 1 gram is 1÷108=0.009 mole
Explanation:
The chemical substances in food that contribute to health, many of which are essential parts of a dietary pattern, are called:.
The chemical substances in food that contribute to health, many of which are essential parts of a dietary pattern, are called nutrients.
What is Nutrients?Nutrients are chemical compounds in food that are used by the body to function properly and maintain health.
Examples includes:
Proteins, Fats, Carbohydrates, Vitamins, and Minerals.Learn more about chemical substances:
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1. Balance the following equations:
(photo attached, just 1 a,b,&c)
Here are the answers
[tex]\\ \tt\hookrightarrow HCl+NaOH\longrightarrow NaCl+H_2O[/tex]
Already balanced[tex]\\ \tt\hookrightarrow H_2SO_4+2NaOH\longrightarrow Na_2SO_4+2H_2O[/tex]
[tex]\\ \tt\hookrightarrow 2HCl+Ba (OH)_2\longrightarrow BaCl_2+2H_2O[/tex]
Why is the statue of liberty made out of copper and not zinc?.
Answer:
The statue of liberty was made of copper. Copper is extremely weather-resistant. It will gradually oxidize copper chloride, which is greenish in
Explanation:
Because it copper and it greenish
A welder has 1. 873 × 102 g Fe2O3 and 94. 51 g Al in his welding kit. Which reactant will he run out of first? Fe2O3 Al.
The reactant that run out first in the reaction is [tex]\rm Fe_2O_3[/tex].
The balanced chemical reaction for welding is:
[tex]\rm Fe_2O_3\;+\;2\;Al\;\rightarrow\;Al_2O_3\;+\;2\;Fe[/tex]
The balanced chemical equation gives the 2 moles of Al reacts with 1 moles of iron oxide.
Computation for limiting reactantThe reactant that exhausts prior in the reaction is known as limiting reactant.
The moles of a sample is given as:
[tex]\rm Moles=\dfrac{Mass}{Molar\;mass}[/tex]
The available moles of iron oxide is:
[tex]\rm Moles\;Fe_2O_3=\dfrac{ 1. 873\;\times\;10^2\;g}{159.69 \;g/mol} \\ Moles\;Fe_2O_3=1.1\;mol[/tex]
The available moles of iron oxide is 1.1 mol
The available moles of Al are:
[tex]\rm Moles\;Al=\dfrac{94. 51\;g}{26.9\;g/mol} \\Moles\;Al=3.5\;mol[/tex]
From the balanced chemical equation, for the reaction with 1 mole iron oxide 2 moles Al is required.
Thus, for the reaction with 1.1 moles Iron oxide, 2.2 moles Al is required.
The available moles of Al is more than the required, therefore, Al is the excess reactant and [tex]\rm Fe_2O_3[/tex] is the limiting reactant.
The reactant that run out first in the reaction is [tex]\rm Fe_2O_3[/tex].
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Using the periodic table, choose the more reactive non-metal.
S or As
Answer:
More reactive non-metal is Sulfur (S).
Explanation:
expect for merucy, all metals are normally solids while nonmetallic are found as solids, liquids, and ___ ?.
Name and define the four quantum numbers that identify the highest energy electron in a francium, fr, atomic orbital.
The highest-energy electron of a francium (Fr) atomic orbital can be identified by four quantum numbers:
Principal quantum number (n)Angular momentum quantum number (l)Magnetic quantum number ([tex]\rm m_l[/tex])Spin quantum number ([tex]\rm m_s[/tex])Principal quantum number (n): Indicates the energy level or shell of the electron.
The size of the orbital is determined by the angular momentum quantum number (l), which ranges from s, p, d, to f.
Determines the orbital direction in space using the magnetic quantum number ([tex]\rm m_l[/tex]).
Electron spin is described by the spin quantum number [tex]\rm(m_s)[/tex], which can be +1/2 (spin-up) or -1/2 (spin-down).
In the electronic structure of francium, these quantum numbers together describe the electron's energy, spatial organization, orientation, and spin state.
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Consider the reaction below. H2(g) CO2(g) Right arrow. H2O(g) CO(g) At equilibrium at 600 K, the following are true. [CO2] = 9. 5 x 10-4 M [H2] = 4. 5 x 10-2 M [H2O] = 4. 6 x 10-3 M [CO] = 4. 6 x 10-3 M What is the value of the equilibrium constant for this reaction in correct scientific notation? 4. 9 x 10-3 4. 9 x 10-2 4. 9 x 10-1 4. 9 x 103.
The value of the equilibrium constant for the reaction is [tex]4.9\;\times\;10^{-1}[/tex]. Thus, option C is correct.
The equilibrium constant for the reaction is given as the ratio of the concentration of product to reactant raised to the stoichiometric coefficients.
Computation for the equilibrium constantThe balanced equation for the reaction is:
[tex]\rm H_2\;+\;CO_2\;\to\;H_2O\;+\;CO[/tex]
The equilibrium constant (K) for the given reaction is:
[tex]K=\rm \dfrac{[H_2O]\;[CO]}{[H_2]\;[CO_2]}[/tex]
Substituting the values for the concentration of the reactant and product:
[tex]K=\dfrac{[4.6\;\times\;10^{-3}]\;[4.6\;\times\;10^{-3}]}{[4.5\;\times\;10^{-2}]\;[9.5\;\times\;10^{-4}]} \\\\K=0.49\\\\K=4.9\;\times\;10^{-1}[/tex]
The value of the equilibrium constant for the reaction is [tex]4.9\;\times\;10^{-1}[/tex]. Thus, option C is correct.
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As the force increases, the ________ increases, too.
Answer:
Pressure?
Explanation:
...........
evaluate the strengths and weaknesses of the different types of sunscreens
Answer:
sunscreens helps of nut burning and the weakness it has polymen so it's bas
Question 8 of 10
How can a solvent be separated from a solute by distillation?
A. The solvent is allowed to separate into layers.
B. The solution is absorbed onto a paper.
C. The solvent is collected as it is boilefmff.
ОО
D. The solution is poured through a filter.
SUBMIT
Answer:
the solvent is collected as it is boiled off.
Explanation
A solvent can be separated from a solute by distillation when the solvent is collected as it is boil.
What happen in distillation?When we heat up the solution so that liquid with the lowest boiling point evaporates first and collected in another container whereas leaving the other solutes behind.
So we can conclude that a solvent can be separated from a solute by distillation when the solvent is collected as it is boil.
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Are the following pairs of structures resonance contributors or different compounds?.
Answer:Determine whether the following pairs of structures are actually different compounds or simply resonance forms of the same
Explanation:
12pm MWF SEC 100 Professor Thomas Teets Units and Significant Figures 01-20-2016 Units: required to make a measurement have meaning; ALL MEASURED QUANTITES NEED UNITS SI Units to Know: Mass Kilogram (kg) Length Meter (m) Time Seconds (s) Temperature Kelvin (K) *NO degree symbol* Amount of substance Mole (mol) Prefixes to Know: Table R-2 in Textbook When these prefixes are added to units, it changes the size of that unit by the given amount (in multiples of 10 ) Mega (M)
Dimensional analysis can only be used for time, distance, mass, speed, volume, and chemical quantities.
Group of answer choices
True
False
Dimensional analysis can only be used for time, distance, mass, speed, volume, and chemical quantities: False.
What is dimensional analysis?A dimensional analysis can be defined as an analysis of the relationships that exist between different physical quantities by identifying their fundamental (base) quantities, especially for the purpose of inferences.
Dimensional analysis is also referred to as unit-factor method or factor-label method and it is typically used to convert a different type of unit to another.
Generally, dimensional analysis can only be used for the following physical quantities:
TimeDistanceMassVolumeSpeedIn conclusion, a dimensional analysis cannot be used for chemical quantities such as a mole i.e it has no dimensional formula.
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When atoms gain electrons, they can become larger, because the addition of an electron increases electrostatic repulsion.
True or false
Answer:True
Explanation: An anion has a larger radius than a neutral atom because it gains valence electrons. There are added electron/electron repulsions in the valence shell that expand the size of the electron cloud, which results in a larger radius for the anion.
hit the crown for me pls :)
Have a great day
Which particle defines which element appears in which block?
At Christmas time, I like to burn scented candles that smell like sugar cookies. How does the candle in one location change the scent in an entire room or space? What is this called?
Answer:
its called diffusion
Explanation:
so the air is a substance and then it mixes with another substance which is the scent of the candle then the particles mix together to make a mixture
What are the negative aspects of using nuclear energy? Select all that apply.
A.risk of danger at reactor sites
B.adds waste heat to air and water
C.produces a great deal of air pollution
D.it creates solid radioactive waste that has to be stored safely over the long term
Answer:
D
Explanation:
Because chemicals like uranium are created as wastes which is not good for the environment
A reaction is occurring in a test tube. How is heat transmitted to the surroundings?
A-As bubbles are formed and gas escapes, the heat is carried with the rising bubbles.
B-Molecules collide with the glass, and the glass molecules then transmit that energy to the outside.
C-Heat is carried out with matter as the matter is changed with the surroundings.
D-All of the heat escapes out of the open top of the test tube as molecules collide with the air.
It should be noted that when a reaction is occurring in a test tube, heat transmitted to the surroundings when Molecules collide with the glass, and the glass molecules then transmit that energy to the outside.
What is heat?Heat can be regarded as a form of energy which is energy that is been transferred as a result of difference in temperature.
In the case above, Molecules collide with the glass, and the glass molecules then transmit that energy to the outside which is an exothermic reaction.
Therefore, option B is correct.
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A burning splint will burn more vigorously in pure oxygen than in air because ________.
Answer:
oxygen is a reactant in combustion and the concentration of oxygen is higher in pure oxygen than it is in air.
How long did the Cambrian period last for?
Answer: 541 million to 485.4 million years ago
Explanation:
