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 Which of the following items is not a path function? Kinetic energy Work Thermal conductivity Heat Kinetic energy Work Thermal conductivity Heat ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The processes occurring in open system which permit the transfer of mass to and from the system, are known as Adiabatic processes Non-flow processes None of the listed here Flow processes Adiabatic processes Non-flow processes None of the listed here Flow processes ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The atomic mass of nitrogen is __________ oxygen. None of these Equal to Less than More than None of these Equal to Less than More than ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics For reversible adiabatic process, change in entropy is Zero Minimum Negative Maximum Zero Minimum Negative Maximum ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Universal gas constant is defined as equal to product of the molecular weight of the gas and Ratio of two specific heats Gas constant Specific heat at constant volume Specific heat at constant pressure Ratio of two specific heats Gas constant Specific heat at constant volume Specific heat at constant pressure ANSWER DOWNLOAD EXAMIANS APP
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