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Colt1911 [192]
3 years ago
15

For the reaction A+B↽−−⇀C+DA+B↽−−⇀C+D , assume that the standard change in free energy has a positive value. Changing the condit

ions of the reaction can alter the value of the change in free energy (Δ????)(ΔG) . Classify the conditions as to whether each would decrease the value of Δ????ΔG , increase the value of Δ????ΔG , or not change the value of Δ????ΔG for the reaction. For each change, assume that the other variables are kept constant.
Chemistry
2 answers:
BaLLatris [955]3 years ago
7 0

Explanation:

Gibbs free energy (G) is dependent upon the enthalpy (H) , temperature (T) and entropy (S) as shown in the equation below;

ΔG =  ΔH   −  TΔS

The factors affect ΔG of a reaction are given below;

Decrease the Value of G

- Positive ΔH and Positive ΔS at high temperatures.

- Negative ΔH and Negative ΔS at low temperatures.

Would not change the value of G

- Negative values of ΔH and Positive values of ΔS; (at all temperatures,  ΔG would be Negative)

- Positive values of ΔH and Negative values of ΔS; (at all temperatures,  ΔG would be positive)

Increase the Value of G

- Positive values of ΔH and Positive ΔS at low temperatures.

- Negative ΔH and Negative ΔS at high temperatures.

77julia77 [94]3 years ago
5 0
What are the answer choices
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3 0
3 years ago
In an electrolytic cell, the magnitude of the standard cell potential is the:______
melamori03 [73]

Answer:

a. minimum voltage that must be supplied for a redox reaction to occur

c. always equal to Eanode - Ecathode

Explanation:

In an electrolytic cell;  The electromotive force(the maximum standard potential difference) of the cell formed by the system is defined as the standard electrode potential of the right handed electrode minus the standard electrode potential of the left hand electrode. (i.e \mathbf{E^{\theta}_{cell}=E_{anode} - E_{cathode}} )

As we all known that the process by which chemical energy is being converted to electrical energy is called the Electrochemical cell. It consists of two half cells , an oxidation half cell reaction and a reduction half-cell reaction.The overall redox reaction results in a flow of electrons in an electric current which is produced by a minimum voltage.

Therefore, option a and c are both correct.

6 0
4 years ago
The theater student talks about a type of theater from Japan called ___________.
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I think the correct answer would be Kabuki. It is a Japanese traditional form of theater that is characterized by the heavy make-up worn by the performers. It started during the Edo Period. It is one of the major classical theater in Japan.
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Answer:

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Explanation:

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  • A solution, on the other hand, results from combining a solute and a solvent. Therefore, a mixture of water and sodium chloride forms the solution.
6 0
3 years ago
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