Engineering Thermodynamics If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to -ve +ve Zero Anywhere between zero and infinity -ve +ve Zero Anywhere between zero and infinity ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle Heat rejection is lower Maximum temperature is higher Expansion and compression are isentropic Combustion is at constant volume Heat rejection is lower Maximum temperature is higher Expansion and compression are isentropic Combustion is at constant volume ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The heat supplied to the gas at constant volume is (where m = Mass of gas, cv = Specific heat at constant volume, cp = Specific heat at constant pressure, T2 - T1 = Rise in temperature, and R = Gas constant) mcv (T2 - T1) mR (T2 - T1) mcp (T2 - T1) mcp (T2 + T1) mcv (T2 - T1) mR (T2 - T1) mcp (T2 - T1) mcp (T2 + T1) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics No liquid can exist as liquid at Zero pressure Centre of earth Vacuum 273°K Zero pressure Centre of earth Vacuum 273°K ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In a free expansion process Heat transfer is zero Work done is zero Both (A) and (B) above Work done is zero but heat increases Heat transfer is zero Work done is zero Both (A) and (B) above Work done is zero but heat increases ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The change of entropy, when heat is absorbed by the gas, is None of these Negative Positive Positive or negative None of these Negative Positive Positive or negative ANSWER DOWNLOAD EXAMIANS APP
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