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 Energy can neither be created nor destroyed, but it can be transformed from one form to another. This statement is known as Second law of thermodynamics First law of thermodynamics Kinetic theory of gases Zeroth law of thermodynamics Second law of thermodynamics First law of thermodynamics Kinetic theory of gases Zeroth law of thermodynamics ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to Dalton's law, the total pressure of the mixture of gases is equal to Sum of the partial pressures of all divided by average molecular weight Average of the partial pressures of all Sum of the partial pressures of all Greater of the partial pressures of all Sum of the partial pressures of all divided by average molecular weight Average of the partial pressures of all Sum of the partial pressures of all Greater of the partial pressures of all ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Diesel cycle consists of following four processes Two isentropic, one constant volume and one constant pressure Two isentropic and two constant pressures Two isothermal and two isentropic Two isentropic and two constant volumes Two isentropic, one constant volume and one constant pressure Two isentropic and two constant pressures Two isothermal and two isentropic Two isentropic and two constant volumes ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics If value of n is infinitely large in a polytropic process pVn = C, then the process is known as constant Pressure Enthalpy Temperature Volume Pressure Enthalpy Temperature Volume ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A perpetual motion machine is A hypothetical machine whose operation would violate the laws of thermodynamics A non-thermodynamic machine A thermodynamic machine A hypothetical machine A hypothetical machine whose operation would violate the laws of thermodynamics A non-thermodynamic machine A thermodynamic machine A hypothetical machine ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS