Chemical Engineering Thermodynamics The free energy change for a chemical reaction is given by (where, K = equilibrium constant) -RT lnK T lnK RT lnK -R lnK -RT lnK T lnK RT lnK -R lnK ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The enthalpy change when ammonia gas is dissolved in water is called the heat of Solution Dilution Combustion Formation Solution Dilution Combustion Formation ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics On a P-V diagram of an ideal gas, suppose a reversible adiabatic line intersects a reversible isothermal line at point A. Then at a point A, the slope of the reversible adiabatic line (∂P/∂V)S and the slope of the reversible isothermal line (∂P/∂V)T are related as (where, y = Cp/Cv) ) (∂P/∂V)S = 1/y(∂P/∂V)T (∂P/∂V)S = y(∂P/∂V)T (∂P/∂V)S = (∂P/∂V)T (∂P/∂V)S = [(∂P/∂V)T]Y (∂P/∂V)S = 1/y(∂P/∂V)T (∂P/∂V)S = y(∂P/∂V)T (∂P/∂V)S = (∂P/∂V)T (∂P/∂V)S = [(∂P/∂V)T]Y ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is R loge 4 R log10 4 Cv loge 4 Cv log10 4 R loge 4 R log10 4 Cv loge 4 Cv log10 4 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is an undesirable characteristics of a refrigerant ? None of these Its vapor pressure at the condenser temperature should be very high It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils It should be non-explosive None of these Its vapor pressure at the condenser temperature should be very high It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils It should be non-explosive ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In the ammonia synthesis reaction, N₂ + 3H₂ ⇋ 2NH₃ + 22.4 kcal, the formation of NH₃ will be favoured by High temperature Low pressure Low temperature only Both low temperature and high pressure High temperature Low pressure Low temperature only Both low temperature and high pressure ANSWER DOWNLOAD EXAMIANS APP
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