Engineering Thermodynamics Which of the following is the correct statement of the second law of thermodynamics? It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy All of these It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy All of these 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 For a thermodynamic process to be reversible, the temperature difference between hot body and working substance should be Infinity Minimum Zero Maximum Infinity Minimum Zero Maximum ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Superheated vapour behaves Approximately as a gas Exactly as gas As steam As ordinary vapour Approximately as a gas Exactly as gas As steam As ordinary vapour ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Measurement of temperature is based on Thermodynamic properties Zeroth law of thermodynamics Second law of thermodynamics First law of thermodynamics Thermodynamic properties Zeroth law of thermodynamics Second law of thermodynamics First law of thermodynamics 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 1.5 Ru × T 3 Ru × T 2 Ru × T Ru × T 1.5 Ru × T 3 Ru × T 2 Ru × T ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ___ is obtained when carbonization of coal is carried out at 500° to 700° C. Pulverized coal Soft coal Hard coal Bituminous coal Pulverized coal Soft coal Hard coal Bituminous coal ANSWER DOWNLOAD EXAMIANS APP
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