Engineering Thermodynamics Which of the following is the correct statement of the second law of thermodynamics? All of these There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work All of these There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In S. I. units, the value of the universal gas constant is 83.14 J/kg mole-K 831.4 J/kg mole-K 8314 J/kg mole-K 8.314 J/kg mole-K 83.14 J/kg mole-K 831.4 J/kg mole-K 8314 J/kg mole-K 8.314 J/kg mole-K ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The following cycle is used for air craft refrigeration Carnot cycle Brayton cycle Joule cycle Reversed Brayton cycle Carnot cycle Brayton cycle Joule cycle Reversed Brayton cycle ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When two bodies are in thermal equilibrium with a third body, they are also in thermal equilibrium with each other. This statement is called Kelvin Planck's law First law of thermodynamics Second law of thermodynamics Zeroth law of thermodynamics Kelvin Planck's law First law of thermodynamics Second law of thermodynamics Zeroth law of thermodynamics ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Work done in an adiabatic process between a given pair of end states depends on Particular adiabatic process The end states only The value of heat transferred The value of index ‘n’ Particular adiabatic process The end states only The value of heat transferred The value of index ‘n’ ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics On weight basis, air contains following parts of oxygen 23 73 25 21 23 73 25 21 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS