Engineering Thermodynamics First law of thermodynamics Provides relationship between heat, work and internal energy Does not enable to determine change in entropy Enables to determine change in internal energy of the system All of these Provides relationship between heat, work and internal energy Does not enable to determine change in entropy Enables to determine change in internal energy of the system All of these 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 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 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 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The principal constituents of a fuel are Sulphur and oxygen Oxygen and hydrogen Sulphur and hydrogen Carbon and hydrogen Sulphur and oxygen Oxygen and hydrogen Sulphur and hydrogen Carbon and hydrogen ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics One molecule of oxygen consists of __________ atoms of oxygen. 2 4 8 16 2 4 8 16 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics If heat be exchanged in a reversible manner, which of the following property of the working substance will change accordingly Temperature Enthalpy Entropy Internal energy Temperature Enthalpy Entropy Internal energy ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics On volume basis, air contains following parts of oxygen 23 21 25 77 23 21 25 77 ANSWER DOWNLOAD EXAMIANS APP
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