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ivann1987 [24]
3 years ago
13

Which statement about spontaneous and nonspontaneous processes is correct? Spontaneous processes are favored by a decrease in H,

but nonspontaneous reactions are favored by an increase in H. Spontaneous processes are favored by a decrease in S, but nonspontaneous reactions are favored by an increase in S. An increase in S favors both spontaneous and nonspontaneous processes. A decrease in H favors both spontaneous and nonspontaneous processes.
Chemistry
2 answers:
Marina86 [1]3 years ago
7 0
I believe your answer would be the first one

hope this helps
Sav [38]3 years ago
5 0

Answer: Spontaneous processes are favored by a decrease in H, but nonspontaneous reactions are favored by an increase in H.

Explanation:

\Delta G=\Delta H-T\Delta S

\Delta G = gibbs free energy

\Delta H = change in enthalpy

\Delta S = change in entropy

For a reaction to be spontaneous, \Delta G= -ve. For this \Delta H  has to be negative i.e. there should be a decrease in enthalpy and \Delta S has to be positive i.e. there should be a increase in entropy.

\Delta G=(-ve)-T(+ve)=-ve-ve=-ve


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2 years ago
In cellular chemical pathways, the product(s) of any particular reaction are often quickly consumed by the next reaction in the
mezya [45]

Answer:

Tend to keep the product concetration <u>low</u> and therefore drive the reaction <u>righward</u>

Explanation:

The fact the products of a reaction are quickly consumed by the next one would tend to keep the product concetration low and therefore drive the reaction righward (to the products).

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5 0
3 years ago
10.0 grams of water are heated during the preparation of a cup of coffee 1.0x 103 j of the heat are added to the water. which is
katovenus [111]

<u>Answer:</u> The final temperature of the coffee is 43.9°C

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Putting values in above equation, we get:

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The base-dissociation constant, kb, for pyridine, c5h5n, is 1.4x10-9 the acid-dissociation constant, ka, for the pyridinium ion,
sp2606 [1]
We are given the base dissociation constant, Kb, for Pyridine (C5H5N) which is 1.4x10^-9. The acid dissociation constant, Ka for the Pyridium ion or the conjugate acid of Pyridine is to be determined. We know from our chemistry classes that:

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Therefore, the acid dissociation constant of Pyridinium ion is 7.14x10^-6.
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