Engineering Thermodynamics The polytropic index (n) is given by log [(p1v1)/(p2v2)] log (p1p2)/log (v1v2) log (p2/ p1)/log (v1/ v2) log (v1/ v2)/ log (p1/p2) log [(p1v1)/(p2v2)] log (p1p2)/log (v1v2) log (p2/ p1)/log (v1/ v2) log (v1/ v2)/ log (p1/p2) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The volumetric or molar specific heat at constant pressure is the product of Molecular mass of the gas and the specific heat at constant volume Atomic mass of the gas and the gas constant Molecular mass of the gas and the gas constant None of the listed here Molecular mass of the gas and the specific heat at constant volume Atomic mass of the gas and the gas constant Molecular mass of the gas and the gas constant None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that A Rankine cycle receives heat at two places Heat is supplied to water at temperature below the maximum temperature of the cycle Carnot cycle can't work with saturated steam Rankine cycle is hypothetical A Rankine cycle receives heat at two places Heat is supplied to water at temperature below the maximum temperature of the cycle Carnot cycle can't work with saturated steam Rankine cycle is hypothetical ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following is the correct statement of the second law of thermodynamics? It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source 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 There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of the Carnot cycle may be increased by Increasing the lowest temperature Increasing the highest temperature Decreasing the highest temperature Keeping the lowest temperature constant Increasing the lowest temperature Increasing the highest temperature Decreasing the highest temperature Keeping the lowest temperature constant ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ratio of root mean square velocity to average velocity of gas molecules at a particular temperature is 0.086 1.086 1.086 4.086 0.086 1.086 1.086 4.086 ANSWER DOWNLOAD EXAMIANS APP
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