Question

A reaction A+B C+D+q is found to have a positive entropy change. The reaction will be -

i) Possible at high temperature
ii) Possible only at low temperature
iii) Not possible at any temperature
iv) Possible at any temperature​

Answer 1

Answer:

1 possible at high temperature

explanation - Entropy, 2nd Law, and 3rd Law. ... Entropy, S, is a state function and is a measure of disorder or randomness. A positive (+) entropy change means an increase in disorder. The universe tends toward increased entropy. All spontaneous change occurs with an increase in entropy of the universe.

Answer 2

Answer:

iv) Possible at any temperature​

Explanation:

ΔG=ΔH−TΔS

for the given reaction,

ΔH=−ve as it is exothermic, ΔS=+ve, then ΔG=ve. So, the reaction will be spontaneous at all temperatures.