Which of the following is true at chemical equilibrium?

Which of the following is true at chemical equilibrium?
  1. $(\Delta \mathrm{G})_{\mathrm{T}, \mathrm{P}}$ is minimum and $(\Delta \mathrm{S})_{\mathrm{U}, \mathrm{V}}$ is also minimum
  2. $(\Delta \mathrm{G})_{\mathrm{T}, \mathrm{V}}$ is minimum and $(\Delta \mathrm{S})_{\mathrm{U}, \mathrm{V}}$ is maximum
  3. $(\Delta \mathrm{G})_{\mathrm{T}, \mathrm{V}}$ is maximum and $(\Delta \mathrm{S})_{\mathrm{U}, \mathrm{V}}$ is zero
  4. $(\Delta \mathrm{G})_{\mathrm{T}, \mathrm{P}}$ is zero and $(\Delta \mathrm{S})_{\mathrm{U}, \mathrm{V}}$ is also zero

Solution

The condition for the equilibrium is
$(\Delta \mathrm{G})_{\mathrm{T}, \mathrm{P}}=0 \quad$ and $(\Delta \mathrm{S})_{\mathrm{U}, \mathrm{V}}=0$ ~

Asked in: JEE-TOPICTESTS-CHEMISTRY

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