Engineering Thermodynamics The sum of internal energy (U) and the product of pressure and volume (p.v) is known as Entropy Power Enthalpy Work done Entropy Power Enthalpy Work done ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When the gas is heated at constant pressure, the heat supplied Increases the internal energy of the gas Both (B) and (C) Does some external work during expansion Increases the temperature of the gas Increases the internal energy of the gas Both (B) and (C) Does some external work during expansion Increases the temperature of the gas ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of a Carnot engine depends on Temperatures of source and sink Working substance Size of engine Design of engine Temperatures of source and sink Working substance Size of engine Design of engine ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The heat absorbed or rejected by the working substance is given by (where ds = Increase or decrease of entropy, T = Absolute temperature, and dQ = Heat absorbed or rejected) None of the listed here δQ = T/ds δQ = T.ds dQ = ds/T None of the listed here δQ = T/ds δQ = T.ds dQ = ds/T ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics For a perfect gas, according to Boyle’s law (where P = Absolute pressure, V = Volume and T = Absolute temperature) P/T = constant, if v is kept constant P v = constant, if T is kept constant T/P = constant, if v is kept constant V/T = constant, if p is kept constant P/T = constant, if v is kept constant P v = constant, if T is kept constant T/P = constant, if v is kept constant V/T = constant, if p is kept constant ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The more effective way of increasing efficiency of Carnot engine is to Decrease lower temperature Increase higher temperature Decrease higher temperature Increase lower temperature Decrease lower temperature Increase higher temperature Decrease higher temperature Increase lower temperature ANSWER DOWNLOAD EXAMIANS APP
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