Thermodynamics questions
1906 published questions with worked solutions.
- When a diatomic gas (rigid) undergoes adiabatic change, its pressure (P) and temperature (T) are related as P T^c. The value of c...
- Which of the following set of thermodynamic conditions is true for the reaction to be spontaneous at high temperature?
- Find standard enthalpy of formation of ammonia from following reaction. N_ 2(g) + 3H_ 2(g) 2NH_ 3(g) ; _r H^0 = -92.0 kJ
- A monoatomic ideal gas, initially at temperature T_1 is enclosed in a cylinder fitted with massless, frictionless piston. By...
- In an isobaric process of an ideal gas, the ratio of heat supplied and work done by the system ( Q W ) is [ C_p C_v = ]
- Identify from following reactions that exhibits negative work done.
- Calculate the enthalpy of solution of potassium chloride if its _L H = 700 kJ mol^ -1 and _ hyd H = -680 kJ mol^ -1
- Calculate the change in internal energy of the system if 20 kJ work is done on the system and it releases 10kJ heat in a...
- When an ideal gas ( = 53 ) is heated under constant pressure, then what percentage of given heat energy will be utilised in doing...
- A gas undergoes a change in which its pressure 'P' and volume 'V' are related as PV^n = constant, where n is a constant. If the...
- 1.8 g water is vapourised by supplying 4 kJ heat at 100°C. What is the heat of vapourisation of water at same temperature?
- Calculate the standard enthalpy change of following reaction CH_ 4 ,(g) + 2O_ 2(g) CO_ 2 ,(g) + 2H_2O_ ( ) If _f H^ (CH_4) = -75...
- During thermodynamic process, the increase in internal energy of a system is equal to the work done on the system. Which process...
- A polyatomic gas at pressure 'P', having volume 'V' expands isothermally to a volume '3 V' and then adiabatically to a volume '24...
- Calculate the standard enathlpy change for synthesis of ammonia gas from following data i. 2H_ 2(g) + N_ 2(g) N_2H_ 4(g) ; _r...
- Identify from following the correct set of thermodynamic conditions for the reaction to be spontaneous below equilibrium...
- Calculate the standard enthalpy change for reaction, C_2H_5OH_ ( ) + 3O_ 2(g) 2CO_ 2(g) + 3H_2O_ ( ) If _f H^ (C_2H_5OH) = -280...
- A sample of an ideal gas ( = 5 3 ) is heated at constant pressure. If 100J of heat is supplied to the gas, the work done by the...
- Heat supplied dQ = increased in internal energy dU is true for
- For a certain reaction, H = -210 kJ and S = -150 ,JK^ -1 Find the temperature so that G=0
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