Chemical Engineering Thermodynamics Out of the following refrigeration cycles, which one has maximum COP? Air cycle Carnot cycle Vapor compression with a reversible expansion engine Ordinary vapor compression cycle Air cycle Carnot cycle Vapor compression with a reversible expansion engine Ordinary vapor compression cycle ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Co-efficient of performance for a reversed Carnot cycle working between temperatures T₁ and T₂ (T₁ > T₂) is T₁/(T₁ - T₂) T₂/(T₁ - T₂) (T₁ - T₂)/T₁ (T₁ - T₂)/T₂ T₁/(T₁ - T₂) T₂/(T₁ - T₂) (T₁ - T₂)/T₁ (T₁ - T₂)/T₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which is not a refrigerant? CCl₂F₂ SO₂ NH₃ C₂H₄Cl₂ CCl₂F₂ SO₂ NH₃ C₂H₄Cl₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics __________ increases with increase in pressure. Neither A nor B Both A and B The boiling point of a liquid The melting point of wax Neither A nor B Both A and B The boiling point of a liquid The melting point of wax ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Entropy change for an irreversible isolated system is ∞ > 0 < 0 ∞ > 0 < 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The expression for entropy change, ΔS = n Cp . ln (T₂/T₁), is valid for the __________ of a substance. Simultaneous pressure & temperature change Cooling Heating Both B and C Simultaneous pressure & temperature change Cooling Heating Both B and C ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS