The standard enthalpy and standard entropy of decomposition of $\mathrm{N_2O_4}$ to $\mathrm{NO_2}$ are $55.0\ \mathrm{kJ\,mol^{-1}}$ and $175.0\ \mathrm{J/K/mol}$ respectively. The standard free energy change for this reaction at $25^\circ$C in $\mathrm{J\,mol^{-1}}$ is ______ (Nearest integer)

Question

Dr. Abubacker · Accepted Answer

[Solution by Dr. Abubacker] $\Delta G^\circ=\Delta H^\circ-T\Delta S^\circ=55000-298	imes175=55000-52150=2850\ \mathrm{J\,mol^{-1}}$. Answer: 2850.

Q. The standard enthalpy and standard entropy of decomposition of $\mathrm{N_2O_4}$ to $\mathrm{NO_2}$ are $55.0\ \mathrm{kJ\,mol^{-1}}$ and $175.0\ \mathrm{J/K/mol}$ respectively. The standard free energy change for this reaction at $25^\circ$C in $\mathrm{J\,mol^{-1}}$ is ______ (Nearest integer)

Explanation

Reviewed by Dr. Abubacker

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