Physics questions
20027 published questions with worked solutions.
- During melting process, the heat given to a body is utilised in
- Molar specific heat at constant volume C_v for a monoatomic gas is
- The specific heat at constant pressure is greater than that for the same gas at constant volume because
- At constant volume, for different diatomic gases, the molar specific heat
- If an ideal gas is compressed isothermally, then
- A refrigerator takes 500 calorie heat at the temperature 260 K. At 300 K, the heat rejected during the leakage will be
- When a gas is in thermal equilibrium, its molecules have
- The process in which no heat enters or leaves the system is termed as
- A refrigerator is
- For an ideal gas, in an isothermal process,
- Second law of thermodynamics is equivalent to which of the following statements?
- Working coefficient of refrigerator is
- Temperature is a measurement of coldness or hotness of an object. This definition is based on
- In an isothermal thermodynamical process, the value of work done by a system is
- The thermal efficiency of a heat engine will be 100% when
- If a system undergoes contraction of volume, then the work done by the system will be
- A refrigerator acts as
- In an adiabatic process, the state of a gas is changed from P_1, V_1, T_1 to P_2, V_2, T_2. Which of the following relations is...
- In thermodynamic processes, which of the following statements is not true?
- In an isothermal expansion,