Chemical Engineering Thermodynamics Which of the following is an undesirable characteristics of a refrigerant ? None of these It should be non-explosive It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils Its vapor pressure at the condenser temperature should be very high None of these It should be non-explosive It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils Its vapor pressure at the condenser temperature should be very high ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Gibbs free energy of mixing at constant pressure and temperature is always + ve - ve ∞ + ve - ve ∞ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A cyclic engine exchanges heat with two reservoirs maintained at 100 and 300°C respectively. The maximum work (in J) that can be obtained from 1000 J of heat extracted from the hot reservoir is 667 349 1000 651 667 349 1000 651 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Fugacity and pressure are numerically not equal for the gases At low temperature and high pressure In ideal state At standard state Both A and B At low temperature and high pressure In ideal state At standard state Both A and B ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The Maxwell relation derived from the differential expression for the Helmholtz free energy (dA) is (∂V/∂S)P = (∂T/∂P)S (∂T/∂V)S = -(∂P/∂S)V (∂S/∂V)T = (∂P/∂T)V (∂S/∂P)T = -(∂V/∂T)P (∂V/∂S)P = (∂T/∂P)S (∂T/∂V)S = -(∂P/∂S)V (∂S/∂V)T = (∂P/∂T)V (∂S/∂P)T = -(∂V/∂T)P ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Specific heat of a gas for a reversible adiabatic process is Negative Infinity Zero None of these Negative Infinity Zero None of these ANSWER DOWNLOAD EXAMIANS APP
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