Chemical Engineering Thermodynamics During a reversible isothermal expansion of an ideal gas, the entropy change is -ve +ve ∞ -ve +ve ∞ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzman's constant, T = absolute temperature) √(3KT/m) √(6KT/m) 3KT/m √(2KT/m) √(3KT/m) √(6KT/m) 3KT/m √(2KT/m) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In jet refrigerators, the refrigerating fluid is practically always Water Freon Ammonia Brine Water Freon Ammonia Brine ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For a constant volume process __________ by the system is used only to increase the internal energy. Heat absorbed Neither A nor B Both A & B Work done Heat absorbed Neither A nor B Both A & B Work done ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in Decreased COP No change in the value of COP Increased or decreased COP ; depending upon the type of refrigerant Enhanced COP Decreased COP No change in the value of COP Increased or decreased COP ; depending upon the type of refrigerant Enhanced COP ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following behaves most closely like an ideal gas? O₂ N₂ He H₂ O₂ N₂ He H₂ ANSWER DOWNLOAD EXAMIANS APP
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