(B) We know that: $\Delta G = \Delta H - T\Delta S$At equilibrium,$\Delta G = 0$,therefore $T\Delta S = \Delta H$.$T = \frac{\Delta H}{\Delta S} = \fr

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(B) We know that: $\Delta G = \Delta H - T\Delta S$At equilibrium,$\Delta G = 0$,therefore $T\Delta S = \Delta H$.$T = \frac{\Delta H}{\Delta S} = \frac{45.0 \times 10^3 \, J}{120 \, J K^{-1}} = 375 \, K$.

Class 11 Chemistry Thermodynamics 2 nd Law of thermodynamics and Entropy

Medium

For the vaporization of water at $1 \, \text{atm}$ pressure,the liquid water and water vapor are in equilibrium. What is the temperature in $K$?
$H_2O_{(l)} \rightleftharpoons H_2O_{(g)}$ [at $1 \, \text{atm}$ pressure] [$\Delta S = 120 \, J K^{-1}$ and $\Delta H = +45.0 \, kJ$]

A
$315$
B
$375$
C
$345$
D
$265$

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Class 11

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Thermodynamics

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2 nd Law of thermodynamics and Entropy

When a liquid boils,there is

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Given $\Delta S_{Total} = -40 \ kJ/mol \cdot K$,$\Delta H_{System} = 2000 \ kJ/mol$,and $T = 400 \ K$. Find the value of $\Delta S_{System}$ in $kJ/mol \cdot K$.

Medium

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For an endothermic reaction $A \rightarrow B$ to occur spontaneously at a constant temperature $T$,the entropy change $\Delta S$ must be:

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For a reversible adiabatic expansion of an ideal gas,which of the following is equal to zero?

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During which of the following processes does entropy decrease?

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For the vaporization of water at $1 \, \text{atm}$ pressure,the liquid water and water vapor are in equilibrium. What is the temperature in $K$?$H_2O_{(l)} \rightleftharpoons H_2O_{(g)}$ [at $1 \, \text{atm}$ pressure] [$\Delta S = 120 \, J K^{-1}$ and $\Delta H = +45.0 \, kJ$]

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When a liquid boils,there is

Given $\Delta S_{Total} = -40 \ kJ/mol \cdot K$,$\Delta H_{System} = 2000 \ kJ/mol$,and $T = 400 \ K$. Find the value of $\Delta S_{System}$ in $kJ/mol \cdot K$.

For an endothermic reaction $A \rightarrow B$ to occur spontaneously at a constant temperature $T$,the entropy change $\Delta S$ must be:

For a reversible adiabatic expansion of an ideal gas,which of the following is equal to zero?

During which of the following processes does entropy decrease?

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For the vaporization of water at $1 \, \text{atm}$ pressure,the liquid water and water vapor are in equilibrium. What is the temperature in $K$?
$H_2O_{(l)} \rightleftharpoons H_2O_{(g)}$ [at $1 \, \text{atm}$ pressure] [$\Delta S = 120 \, J K^{-1}$ and $\Delta H = +45.0 \, kJ$]