Engineering Thermodynamics On weight basis, air contains following parts of oxygen 25 73 23 21 25 73 23 21 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following is the extensive property of a thermodynamic system? Volume Pressure Density Temperature Volume Pressure Density Temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In an isothermal process, the internal energy First increases and then decreases Decreases Remain constant Increases First increases and then decreases Decreases Remain constant Increases 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) Both (B) and (C) cv/ cp =R cv = R/ γ-1 cp - cv = R Both (B) and (C) cv/ cp =R cv = R/ γ-1 cp - cv = R 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 the processes, taking place in the cycle of operation, must be extremely slow All of these 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 the processes, taking place in the cycle of operation, must be extremely slow All of these The working parts of the engine must be friction free ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Work done in an adiabatic process between a given pair of end states depends on The value of heat transferred Particular adiabatic process The value of index ‘n’ The end states only The value of heat transferred Particular adiabatic process The value of index ‘n’ The end states only ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS