Engineering Thermodynamics Second law of thermodynamics defines Work Entropy Internal energy Heat Work Entropy Internal energy Heat ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics During which of the following process does heat rejection takes place in Carnot cycle? Isentropic expansion Isothermal expansion Isothermal compression Isentropic compression Isentropic expansion Isothermal expansion Isothermal compression Isentropic compression ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The general gas energy equation is (where Q1 - 2 = Heat supplied, dU = Change in internal energy, and W1 - 2 = Work done in heat units) Q1 - 2 = dU + W1 - 2 Q1 - 2 = dU × W1 - 2 Q1 - 2 = dU - W1 - 2 Q1 - 2 = dU/W1 - 2 Q1 - 2 = dU + W1 - 2 Q1 - 2 = dU × W1 - 2 Q1 - 2 = dU - W1 - 2 Q1 - 2 = dU/W1 - 2 ANSWER DOWNLOAD EXAMIANS APP
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 One molecule of oxygen consists of __________ atoms of oxygen. 4 2 8 16 4 2 8 16 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Compressed air coming out from a punctured football Becomes cooler May become hotter or cooler depending upon the humidity of the surrounding air Becomes hotter Remains at the same temperature Becomes cooler May become hotter or cooler depending upon the humidity of the surrounding air Becomes hotter Remains at the same temperature ANSWER DOWNLOAD EXAMIANS APP
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