NCERT Solutions for Class 11 Chemistry Chapter 6 - Thermodynamics

Question 1:

Choose the correct answer.
A thermodynamic state function is a quantity :

Question 2:

For the process to occur under adiabatic conditions, the correct condition is :

Question 3:

The enthalpies of all elements in their standard states are :

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Question 6:

(i) possible at high temperature
(ii) possible only at low temperature
(iii)not possible at any temperature
(iv) possible at any temperature.

Question 7:

In a process, 701 J of heat is absorbed by a system and 394 J of work is done by the system. What is the change in internal energy for the process ?

Question 8:

The reaction of cyanamide, NH₂CN (s), with dioxygen was carried out in a bomb calorimeter, and △U was found to be – 742.7 kJ mol^–1 at 298 K. Calculate enthalpy change for the reaction at 298 K.

Question 9:

Calculate the number of kJ necessary to raise the temperature of 60.0 g of aluminium from 35 to 55° C. Molar heat capacity of Al is 24 J mol^–1 K^–1.

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Question 21:

Comment on the thermodynamic stability of NO (g), given

Question 22: