Assertion (A): The dissolution of gases in water is always an endothermic process.
Reason (R ) : The dissolution of gases in water proceed with a negative value of `DeltaS`.

Options

A. If both `(A)` and `(R )` are correct, and `(R )` is the correct explanation of `(A)`.
B. If both `(A)` and `(R )` are correct, but `(R )` is not the correct explanation of `(A)`.
C. If `(A)` is correct, but `(R )` is incorrect.
D. If `(A)` is correct, but `(R )` is correct.

Answer

D

Explanation

The dissolution of gasses in water requires energy, hence it is endothermic in nature, but during dissolution entropy may increase or decrease.