Engineering Thermodynamics Which of the following processes are thermodynamically reversible? Throttling Constant volume and constant pressure Isothermal and adiabatic Free expansion Throttling Constant volume and constant pressure Isothermal and adiabatic Free expansion ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics An adiabatic process is one in which The temperature of the gas changes No heat enters or leaves the gas The change in internal energy is equal to the mechanical work done All of these The temperature of the gas changes No heat enters or leaves the gas The change in internal energy is equal to the mechanical work done All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following is the property of a system? Enthalpy and entropy Pressure and temperature Volume and density All of these Enthalpy and entropy Pressure and temperature Volume and density All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to First law of thermodynamics, Work-done by a system is equal to the heat transferred by the system Total energy of a system remains constant Internal energy, enthalpy and entropy during a process remain constant Total internal energy of a system during a process remains constant Work-done by a system is equal to the heat transferred by the system Total energy of a system remains constant Internal energy, enthalpy and entropy during a process remain constant Total internal energy of a system during a process remains constant ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Relation between cp and cv is given by (where cp = Specific heat at constant pressure, cv = Specific heat at constant volume, γ = cp/cv, known as adiabatic index, and R = Gas constant) cp - cv = R cv = R/ γ-1 cv/ cp =R Both (B) and (C) cp - cv = R cv = R/ γ-1 cv/ cp =R Both (B) and (C) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle. Equal to None of these Greater than Less than Equal to None of these Greater than Less than ANSWER DOWNLOAD EXAMIANS APP
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