Engineering Thermodynamics Which of the following is the correct statement of the second law of thermodynamics? There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work All of these It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work All of these It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Entropy change depends on Heat transfer Mass transfer Thermodynamic state Change of temperature Heat transfer Mass transfer Thermodynamic state Change of temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics If in the equation pvn = C, the value of n = ∝, then the process is called Isothermal process Constant volume process Constant pressure process Adiabatic process Isothermal process Constant volume process Constant pressure process Adiabatic process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics If a system after undergoing a series of processes, returns to the initial state then Process is executed in closed system cycle Sum of heat and work transfer will be zero Process is thermodynamically in equilibrium Its entropy will change due to irreversibility Process is executed in closed system cycle Sum of heat and work transfer will be zero Process is thermodynamically in equilibrium Its entropy will change due to irreversibility ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When a gas is heated at constant volume Neither temperature nor pressure will increase Its temperature will increase Its pressure will increase Both temperature and pressure will increase Neither temperature nor pressure will increase Its temperature will increase Its pressure will increase Both temperature and pressure will increase ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to kinetic theory of gases, the velocity of molecules __________ with the increase in temperature. Decreases Increases Remains constant None of these Decreases Increases Remains constant None of these ANSWER DOWNLOAD EXAMIANS APP
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