For a chemical reaction to be non-spontaneous at any temperature, which of the following conditions must be met?

Hi, the given question has some missing part. Complete question is: " For a chemical reaction to be non-spontaneous at any temperature, which of the following conditions must be met?

A. ΔS° > 0, ΔH° > 0

B. ΔS° > 0, ΔH° < 0

C. ΔS° < 0, ΔH° < 0

D. ΔS° < 0, ΔH° > 0

E. All reactions are spontaneous at some temperature."

Option (D) is correct.

Explanation:

We know that,

Where T represents temperature in kelvin scale. Hence it is always positive.

For a non-spontaneous reaction, should be positive.

If then at any T value.

Hence for any value of T if both and are greater than zero.

So, option (D) is correct.

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.