Engineering Thermodynamics Change in enthalpy of a system is the heat supplied at Constant pressure Constant entropy Constant temperature Constant volume Constant pressure Constant entropy Constant temperature Constant volume ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The gas constant (R) is equal to the Difference of two specific heats Product of two specific heats Ratio of two specific heats Sum of two specific heats Difference of two specific heats Product of two specific heats Ratio of two specific heats Sum of two specific heats ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The condition for the reversibility of a cycle is 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 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The energy of molecular motion appears as Friction Surface tension Heat Potential energy Friction Surface tension Heat Potential energy ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The kinetic energy per kg molecule of any gas at absolute temperature T is equal to (where Ru = Universal gas constant) Ru × T 2 Ru × T 3 Ru × T 1.5 Ru × T Ru × T 2 Ru × T 3 Ru × T 1.5 Ru × T ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The heat energy stored in the gas and used for raising the temperature of the gas is known as Kinetic energy Molecular energy Internal energy External energy Kinetic energy Molecular energy Internal energy External energy ANSWER DOWNLOAD EXAMIANS APP