WBJEE · Chemistry · Thermodynamics (C)
Identify the correct statement from the following in a chemical reaction.
- A The entropy always increases
- B The change in entropy along with suitable change in enthalpy decides the rate of reaction
- C The enthalpy always decreases
- D Both the enthalpy and the entropy remain constant
Answer & Solution
Correct Answer
(B) The change in entropy along with suitable change in enthalpy decides the rate of reaction
Step-by-step Solution
Detailed explanation
\(\Delta \mathrm{G}(\mathrm{T}, \mathrm{P})=\Delta \mathrm{H}-\mathrm{T} \Delta \mathrm{S}\) gives the free energy of system. When \(\Delta \mathrm{G}(\mathrm{T}, \mathrm{P})0\), the reaction is non-spontaneous. Hence, entropy changed with a suitable change in enthalpy will…
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