Thermodynamics questions
1906 published questions with worked solutions.
- The sign of G for the process of melting of ice at 273 K and 1 atm pressure is
- For a reaction to have highest spontaneity, it should be
- Entropy change of a system and its surrounding in equilibrium
- In a reversible process, S_ system + S_ surroundings is
- The enthalpy change is constant irrespective of steps involved. This statement is known as
- The favorable conditions for a spontaneous reaction are
- The enthalpy of vaporization of a substance is 840 kJ ,mol^ -1 and its boiling point is -173^ C . Its entropy of vaporization is
- Given that : C(graphite) C(g) ; H = 716.7 kJ and C(diamond) C(g) ; H = 714.8 kJ. The H for the reaction C(graphite) C(diamond) is
- The free energy change for a reversible reaction at equilibrium is
- For the reaction C(s) + O_2(g) CO_2(g) ; H_1 = -394 kJ ,mol^ -1 and 2CO(g) + O_2(g) 2CO_2 ; H_2 = -569 kJ, H for formation of CO...
- For the reaction 2SO_2(g) + O_2(g) 2SO_3(g) the entropy
- Hess's law is used to calculate
- Hess's law is used to calculate
- Identify the correct statement for the change of Gibbs energy for a system ( G_ system ) at constant temperature and pressure
- The enthalpy of vaporisation of water is 186.5 J ,mol^ -1 , the entropy of its vaporisation will be
- According to the 3rd law of thermodynamics, which one of the following quantities for a perfectly crystalline solid is zero at...
- The law formulated by Nernst is
- For a reaction R_1, G = x kJ ,mol^ -1 . For a reaction R_2, G = y kJ ,mol^ -1 . Reaction R_1 is non-spontaneous but along with...
- For the reaction 2Cl(g) Cl_2(g) the sign of H and S respectively are
- On combustion, carbon forms two oxides CO and CO_2 . Heat of formation of CO_2 is 94.3 kcal and that of CO is 26.0 kcal. Heat of...
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