Engineering Thermodynamics The condition for the reversibility of a cycle is 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 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that Heat is supplied to water at temperature below the maximum temperature of the cycle Carnot cycle can't work with saturated steam Rankine cycle is hypothetical A Rankine cycle receives heat at two places Heat is supplied to water at temperature below the maximum temperature of the cycle Carnot cycle can't work with saturated steam Rankine cycle is hypothetical A Rankine cycle receives heat at two places ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The temperature at which the volume of a gas becomes zero is called Absolute scale of temperature None of these Absolute zero temperature Absolute temperature Absolute scale of temperature None of these Absolute zero temperature Absolute temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The oxygen atom is ________ times heavier than the hydrogen atom. 32 16 2 8 32 16 2 8 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When gas is heated at constant pressure, the heat supplied is utilized in Doing some external work None of these Increasing the internal energy of gas Increasing the internal energy of gas and also for doing some external work Doing some external work None of these Increasing the internal energy of gas Increasing the internal energy of gas and also for doing some external work ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of the Carnot cycle is (where T1 and T2 = Highest and lowest temperature during the cycle) 1 + (T2/T1) (T1/T2) - 1 1 - (T1/T2) 1 - (T2/T1) 1 + (T2/T1) (T1/T2) - 1 1 - (T1/T2) 1 - (T2/T1) ANSWER DOWNLOAD EXAMIANS APP
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