Engineering Thermodynamics According to First law of thermodynamics, Internal energy, enthalpy and entropy during a process remain constant Work-done by a system is equal to the heat transferred by the system Total internal energy of a system during a process remains constant Total energy of a system remains constant Internal energy, enthalpy and entropy during a process remain constant Work-done by a system is equal to the heat transferred by the system Total internal energy of a system during a process remains constant Total energy of a system remains constant ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When the gas is heated at constant pressure, the heat supplied Does some external work during expansion Increases the internal energy of the gas Increases the temperature of the gas Both (B) and (C) Does some external work during expansion Increases the internal energy of the gas Increases the temperature of the gas Both (B) and (C) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to Clausius statement of second law of thermodynamics Heat can be transferred for low temperature to high temperature source by using refrigeration cycle Heat can Heat can Heat can be transferred from low temperature to high temperature source if COP of process is more than unity Heat can be transferred for low temperature to high temperature source by using refrigeration cycle Heat can Heat can Heat can be transferred from low temperature to high temperature source if COP of process is more than unity ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In a free expansion process Work done is zero Heat transfer is zero Both (A) and (B) above Work done is zero but heat increases Work done is zero Heat transfer is zero Both (A) and (B) above Work done is zero but heat increases ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In an isothermal process, the internal energy of gas molecules May increase/decrease depending on the properties of gas Decreases Remain constant Increases May increase/decrease depending on the properties of gas Decreases Remain constant Increases ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to Regnault's law, the specific heat at constant pressure (cp) and specific heat at constant volume (cv) _________ with the change in pressure and temperature of the gas. Both (A) and (B) Change None of these Do not change Both (A) and (B) Change None of these Do not change ANSWER DOWNLOAD EXAMIANS APP
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