Engineering Thermodynamics When the gas is heated at constant pressure, the heat supplied Increases the internal energy of the gas Does some external work during expansion Increases the temperature of the gas Both (B) and (C) Increases the internal energy of the gas Does some external work during expansion Increases the temperature of the gas Both (B) and (C) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Change in internal energy in a closed system is equal to heat transferred if the reversible process takes place at constant Temperature Volume Internal energy Pressure Temperature Volume Internal energy Pressure ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The value of n = 1 in the polytropic process indicates it to be Adiabatic process Isothermal process Irreversible process Reversible process Adiabatic process Isothermal process Irreversible process Reversible process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A process, in which the gas is heated or expanded in such a way that the product of its pressure and volume remains constant, is called Hyperbolic process Isothermal process Adiabatic process Polytropic process Hyperbolic process Isothermal process Adiabatic process Polytropic process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The condition for the reversibility of a cycle is The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process All of these All the processes, taking place in the cycle of operation, must be extremely slow The working parts of the engine must be friction free The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process All of these All the processes, taking place in the cycle of operation, must be extremely slow The working parts of the engine must be friction free ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics An adiabatic process is one in which 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 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 ANSWER DOWNLOAD EXAMIANS APP
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