Question

16. When AH and TAS both are negative, then for spontaneous process which option is true?
(1) AH > TAS
(2) AH<TAS
(3) AH = TAS
(4) AH = AU​

Answer 1

the answer has been explained in the attached picture

hope this will help you to get the solution

Answer 2

Answer:

The correct option is A. i.e ΔH>TδS.

Explanation:

• A spontaneous process can be defined as the process that happens without the need for external energy input.
• For example, water will flow downhill, ice will melt into water, radioisotopes will decay, and iron will rust.

Condition for a process to be called spontaneous encompasses:

1. A negative value for ∆G, (∆G < 0).
2. A positive value for ∆S, (∆S > 0).

We know,

∆G = ∆H – T∆S

Here,

∆G = change in free energy

∆H = change in enthalpy

T = temperature in Kelvin

∆S= change in entropy

Here, we have given that both ∆H and are T∆S negative, So for the spontaneous process, ∆H should be greater than that of  T∆S by which the value of ∆G will be negative hence, making it a spontaneous process.