# Thermodynamics interview questions

- What is the First Law of Thermodynamics?
- What is the Second Law of Thermodynamics?
- What is entropy and how does it relate to the Second Law of Thermodynamics?
- What is the difference between an open, closed, and isolated system?
- What is the difference between heat and temperature?
- What is the Carnot cycle?
- What is the efficiency of a Carnot engine?
- What is the difference between internal energy and enthalpy?
- What is the definition of specific heat?
- How does the specific heat of a substance relate to its molecular structure?
- What is the definition of latent heat?
- What is the difference between a reversible and an irreversible process?
- What is the definition of work in thermodynamics?
- What is the difference between adiabatic, isothermal, isobaric, and isochoric processes?
- What is the definition of a phase change?
- What is the Clausius-Clapeyron equation and what is it used for?
- What is the definition of a thermodynamic cycle?
- What is the difference between a heat engine and a refrigerator?
- What is the definition of a heat pump?
- What is the coefficient of performance of a heat pump?
- What is the Joule-Thomson effect and how does it relate to thermodynamics?
- What is the difference between a real gas and an ideal gas?
- What is the ideal gas law and how is it derived?
- What is the difference between molar and mass-specific heat capacities?
- What is the difference between a state function and a path function?
- What is the difference between work done at constant volume and work done at constant pressure?
- What is the meaning of the term enthalpy?
- What is the difference between enthalpy and internal energy?
- What is the Gibbs free energy and how is it related to enthalpy and entropy?
- What is the Helmholtz free energy and how is it related to enthalpy and entropy?
- What is the definition of the heat of reaction and how is it related to the enthalpy change of a chemical reaction?
- What is the definition of thermal equilibrium?
- What is the definition of adiabatic process?
- What is the definition of isentropic process?
- What is the definition of isobaric process?
- What is the definition of isochoric process?
- What is the definition of a polytropic process?
- What is the definition of a reversible process?
- What is the definition of an irreversible process?
- What is the definition of a thermodynamic cycle?
- What is the definition of the thermodynamic temperature scale?
- What is the definition of absolute zero?
- What is the definition of the triple point?
- What is the definition of the critical point?
- What is the definition of a phase diagram?
- What is the definition of a phase transition?
- What is the definition of a phase equilibrium?
- What is the definition of a triple point?
- What is the definition of a critical point?
- What is the definition of a critical temperature?
- What is the definition of a critical pressure?
- What is the definition of a critical volume?
- What is the definition of a critical density?
- What is the definition of specific volume?
- What is the definition of specific entropy?
- What is the definition of specific enthalpy?
- What is the definition of specific internal energy?
- What is the definition of specific heat capacity?
- What is the definition of specific gas constant?
- What is the definition of thermodynamic property?
- What is the definition of heat capacity?
- What is the definition of thermal conductivity?
- What is the definition of thermal diffusivity?
- What is the definition of thermal expansion?
- What is the definition of thermal efficiency?
- What is the definition of a heat engine?
- What is the definition of a refrigeration cycle?
- What is the definition of a heat pump cycle?
- What is the definition of a Rankine cycle?
- What is the definition of a Brayton cycle?
- What is the definition of a Stirling cycle?
- What is the definition of a Otto cycle?
- What is the definition of a Diesel cycle?
- What is the definition of a Carnot cycle?
- What is the definition of a thermoelectric effect?
- What is the definition of a Peltier effect?
- What is the definition of a Seebeck effect?
- What is the definition of a thermocouple?
- What is the definition of a thermopile?
- What is the definition of the Seebeck coefficient?
- What is the definition of the Peltier coefficient?
- What is the definition of the Clausius inequality?
- What is the definition of the Kelvin-Planck statement?
- What is the definition of the Carnot theorem?
- What is the definition of the maximum work theorem?
- What is the definition of the minimum energy theorem?
- What is the definition of the principle of least action?
- What is the definition of the thermodynamic equation of state?
- What is the definition of a fugacity?
- What is the definition of a chemical potential?
- What is the definition of the chemical potential energy?
- What is the definition of the osmotic pressure?
- What is the definition of the Gibbs-Duhem equation?
- What is the definition of the Gibbs-Helmholtz equation?
- What is the definition of the Kirchhoffโs law?
- What is the definition of the Le Chatelierโs principle?
- What is the definition of the reaction quotient?
- What is the definition of the equilibrium constant?
- What is the definition of the mass action law?
- What is the definition of the law of mass conservation?
- What is the definition of the heat transfer coefficient?
- What is the definition of the thermal boundary layer?
- What is the definition of the Nusselt number?
- What is the definition of the Reynolds number?
- What is the definition of the Prandtl number?
- What is the definition of the Mach number?
- What is the definition of the Froude number?
- What is the definition of the Strouhal number?
- What is the definition of the Sherwood number?
- What is the definition of the Stanton number?
- What is the definition of the Biot number?
- What is the definition of the Fourier number?
- What is the definition of the Pรฉclet number?
- What is the definition of the Grashof number?
- What is the definition of the Rayleigh number?