What is the nature of reaction at 298   K , if the entropy change and enthalpy change for a chemical…

What is the nature of reaction at 298 K, if the entropy change and enthalpy change for a chemical reaction are 7.4 cal K-1 and-2.5×103 cal, respectively.
  1. Reversible
  2. Spontaneous
  3. Non-Spontaneous
  4. Irreversible

Solution

As Gibbs free energy tells us about the spontenity of the reaction which is calculated as:

G=H-TSG=(-2.5×103) - 298×7.4G=-4705.2 cal

As, Gibbs free energy is negative. So, reaction is spontaneous.

Asked in: AP EAMCET 2019 (21 Apr Shift 2)

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