Chemical Engineering Thermodynamics The second law of thermodynamics states that None of these It is not possible to transfer heat from a lower temperature to a higher temperature The total energy of system and surrounding remains the same The energy change of a system undergoing any reversible process is zero None of these It is not possible to transfer heat from a lower temperature to a higher temperature The total energy of system and surrounding remains the same The energy change of a system undergoing any reversible process is zero ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is an undesirable characteristics of a refrigerant ? It should be non-explosive Its vapor pressure at the condenser temperature should be very high None of these It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils It should be non-explosive Its vapor pressure at the condenser temperature should be very high None of these It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Pick out the wrong statement pertaining to the decomposition of PCl5 represented by, PCl5 ⇋ PCl3 + Cl₂.Degree of dissociation of PCl5 will Increase on addition of an inert gas at constant pressure None of these Decrease on addition of Cl₂ Decrease on increasing the pressure of the system Increase on addition of an inert gas at constant pressure None of these Decrease on addition of Cl₂ Decrease on increasing the pressure of the system ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Melting of ice is an example of an __________ process. Isometric None of these Adiabatic Isothermal Isometric None of these Adiabatic Isothermal ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The expression, ΔG = nRT .In P₂/P₁ , gives the free energy change With pressure changes at constant temperature Under reversible isothermal volume change During heating of an ideal gas During cooling of an ideal gas With pressure changes at constant temperature Under reversible isothermal volume change During heating of an ideal gas During cooling of an ideal gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A reasonably general expression for vapour-liquid phase equilibrium at low to moderate pressure is Φi yi P = Yi xi fi° where, Φ is a vapor fugacity component, Yi is the liquid activity co-efficient and fi° is the fugacity of the pure component i. the Ki value (Yi = Ki xi) is therefore, in general a function of Temperature, pressure, liquid composition xi and vapour composition yi Temperature only Temperature, pressure and liquid composition xi only Temperature and pressure only Temperature, pressure, liquid composition xi and vapour composition yi Temperature only Temperature, pressure and liquid composition xi only Temperature and pressure only ANSWER DOWNLOAD EXAMIANS APP
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