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 energy change of a system undergoing any reversible process is zero The total energy of system and surrounding remains the same None of these It is not possible to transfer heat from a lower temperature to a higher temperature The energy change of a system undergoing any reversible process is zero The total energy of system and surrounding remains the same ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The expression, ΔG = nRT .In P₂/P₁ , gives the free energy change Under reversible isothermal volume change With pressure changes at constant temperature During cooling of an ideal gas During heating of an ideal gas Under reversible isothermal volume change With pressure changes at constant temperature During cooling of an ideal gas During heating of an ideal gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Water on heating from 1 to 4°C May contract or expand Contracts Expands Has same volume May contract or expand Contracts Expands Has same volume ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics When a gas in a vessel expands, its internal energy decreases. The process involved is Isothermal Adiabatic Reversible Irreversible Isothermal Adiabatic Reversible Irreversible ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics An ideal liquid refrigerant should Not have unduly high vapour pressure at the condenser temperature Have low specific heat Not have a subatmospheric vapour pressure at the temperature in the refrigerator coils Both A and B Not have unduly high vapour pressure at the condenser temperature Have low specific heat Not have a subatmospheric vapour pressure at the temperature in the refrigerator coils Both A and B ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In vapour compression refrigeration system, if the evaporator temperature and the condenser temperatures are -13°C and 37°C respetively, the Carnot COP will be 6.2 Data insufficient, can't be found out 0.168 5.2 6.2 Data insufficient, can't be found out 0.168 5.2 ANSWER DOWNLOAD EXAMIANS APP
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