Thermal Physics MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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Which type of process occurs at constant volume?
A. Isochoric process
B. Isothermal process
C. Isobaric process
D. Adiabatic process
Answer: Isochoric process
The amount of heat needed to change the temperature of 1 mole of a substance by 1°C is known as its:
A. Molar heat capacity
B. Specific heat capacity
C. Latent heat
D. Thermal energy
Answer: Molar heat capacity
In thermodynamics, the term ‘enthalpy’ refers to:
A. The total heat content of a system
B. The heat required to raise the temperature of a substance
C. The work done by a system
D. The change in internal energy
Answer: The total heat content of a system
Which of the following statements best describes an isobaric process?
A. Pressure remains constant
B. Volume remains constant
C. Temperature remains constant
D. Entropy remains constant
Answer: Pressure remains constant
The heat energy required to change a substance from liquid to gas is known as:
A. Latent heat of vaporization
B. Latent heat of fusion
C. Specific heat
D. Thermal energy
Answer: Latent heat of vaporization
The concept of entropy is associated with which type of thermodynamic process?
A. Irreversible process
B. Reversible process
C. Isentropic process
D. Isothermal process
Answer: Irreversible process
The total energy of a system is given by the sum of its internal energy and:
A. Work done
B. Heat added
C. Potential energy
D. Kinetic energy
Answer: Potential energy
Which of the following is a characteristic of an isothermal process?
A. Constant temperature
B. Constant pressure
C. Constant volume
D. Constant entropy
Answer: Constant temperature
The process of heat transfer through direct contact of particles is called:
A. Conduction
B. Convection
C. Radiation
D. Advection
Answer: Conduction