Work is a

Related MCQs

• Correlate the following statements i) the volume of water into which steam is condensed in condenser is very much smaller than the volume of steam before condensation ii) the net work of a Rankine cycle is heat supplied in boiler - heat rejected to condenser - pump work
• A Rankine cycle has efficiency of 19.4%. The steam enters the turbine with enthalpy of 32.85 kJ/Kg while heat of water entering the boiler is 423.6 kJ/Kg.the work of the turbine is 560 kJ/ Kg. the pump work is
• In which of the following processes the external work done is not zero?
• The temperature in a process in which work is done by expanding a gas under adiabatic condition will
• As differentials, heat & work would be described mathematically as
• In a reversible cycle, the source temperature is 227°C & the sink temperature is 27°C. The maximum available work for a heat input of 100 kJ will be
• A reversible engine performing as engine has efficiency of 62.5%. If it is reversed to work as refrigerator its COP will be
• In which of the following processes the change in internal energy of a gas is equal to the work done
• During a polytropic expansion 25% of heat is converted into work while temperature of gas rises by 30 K, the specific heat of gas at constant volume is
• During a constant pressure expansion of a gas 33.3 % heat is converted into work while the temperature rises by 20K. The specific heat of gas at constant pressure is