Engineering Thermodynamics When the gas is heated at constant pressure, the heat supplied Does some external work during expansion Increases the internal energy of the gas Increases the temperature of the gas Both (B) and (C) Does some external work during expansion Increases the internal energy of the gas Increases the temperature of the gas Both (B) and (C) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In an isothermal process, the internal energy of gas molecules Decreases May increase/decrease depending on the properties of gas Remain constant Increases Decreases May increase/decrease depending on the properties of gas Remain constant Increases ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Compressed air coming out from a punctured football Becomes cooler Becomes hotter May become hotter or cooler depending upon the humidity of the surrounding air Remains at the same temperature Becomes cooler Becomes hotter May become hotter or cooler depending upon the humidity of the surrounding air Remains at the same temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The polytropic index (n) is given by log (p1p2)/log (v1v2) log (v1/ v2)/ log (p1/p2) log [(p1v1)/(p2v2)] log (p2/ p1)/log (v1/ v2) log (p1p2)/log (v1v2) log (v1/ v2)/ log (p1/p2) log [(p1v1)/(p2v2)] log (p2/ p1)/log (v1/ v2) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The value of cp/cv for air is 1.4 1.45 2.3 1 1.4 1.45 2.3 1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The cycle in which heat is supplied at constant volume and rejected at constant pressure is known as Rankine cycle Diesel cycle Atkinson cycle Dual combustion cycle Rankine cycle Diesel cycle Atkinson cycle Dual combustion cycle ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS