Thermodynamics questions
1906 published questions with worked solutions.
- In thermodynamic processes, which of the following statements is not true?
- System A is in thermal equilibrium with B and B is separately in thermal equilibrium with C. Then A and C are in thermal...
- Which of the following is not a thermodynamical function?
- Which of the following laws of thermodynamics leads to the inference that it is difficult to convert whole of heat into work?
- First law of thermodynamics is given by
- The molar heat capacity in a process of a diatomic gas, if it does a work of Q 4 when a heat of Q is supplied to it, is
- Work done per mol in isothermal change is
- The specific heat of hydrogen gas at constant pressure is C_p=3.4 10^3 cal/kg °C and at constant volume is C_v=2.4 10^3 cal/kg...
- Which of the following processes is reversible?
- An ideal heat engine working between temperature T_1 and T_2 has an efficiency . The new efficiency, if both the source and sink...
- Which of the following statements is correct for any thermodynamic system?
- Which of the following statements is correct in terms of increasing work done for the same initial and final state?
- When 1 g of water at 0°C and 1 10^5 N/m^2 pressure is converted into ice of volume 1.091 cm^3 , the external work done will be
- In an adiabatic expansion,
- For an isothermal expansion of a perfect gas, the value of P P is equal to
- An ideal heat engine exhausting heat at 77°C is to have a 30% efficiency. It must take heat at
- A gas expands under constant pressure P from volume V_1 to V_2. The work done by the gas is
- When an ideal gas ( =5/3) is heated under constant pressure, then what percentage of given heat energy will be utilised in doing...
- Efficiency of a Carnot engine is 50% when temperature of outlet is 500 K. In order to increase efficiency up to 60% keeping...
- The volume of air increases by 5% in its adiabatic expansion. The percentage decrease in its pressure will be
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