NEET
Chemistry
Thermodynamics / रासायनिक उष्मागतिकी
NEET PYQ-Thermodynamics
question_answer
The enthalpy and entropy change for the reaction: \[B{{r}_{2}}(l)+C{{l}_{2}}(g)\to 2BrCl(g)\] are \[30\,\,kJ\,\,mo{{l}^{-1}}\] and \[105\,\,k{{J}^{-1}}\,\,mo{{l}^{-1}}\] respectively. The temperature at which the reaction will be in equilibrium is: [AIPMT (S) 2006]
A) 285.7 K
B) 273 K
C) 450 K
D) 300 K
Correct Answer:
A
Solution :
At equilibrium Gibbs free energy change is equal to zero. The following thermodynamic relation is used to show the relation of with enthalpy change and entropy change