Chemical Engineering Thermodynamics Co-efficient of performance for a reversed Carnot cycle working between temperatures T₁ and T₂ (T₁ > T₂) is (T₁ - T₂)/T₂ T₁/(T₁ - T₂) T₂/(T₁ - T₂) (T₁ - T₂)/T₁ (T₁ - T₂)/T₂ T₁/(T₁ - T₂) T₂/(T₁ - T₂) (T₁ - T₂)/T₁ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Trouton's ratio is given by (where λb, = molal heat of vaporisation of a substance at its normal boiling point, kcal/kmol Tb = normal boiling point, °K ) λb/Tb √(λb/Tb) √(Tb/λb) Tb/λb λb/Tb √(λb/Tb) √(Tb/λb) Tb/λb ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The co-efficient of performance (COP) of a refrigerating system, which is its index of performance, is defined as the ratio of useful refrigeration to the net work. The units of __________ and COP are the same. Kinematic viscosity Temperature None of these Work Kinematic viscosity Temperature None of these Work ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following has the minimum value of COP for a given refrigeration effect? Ordinary vapour-compression cycle Air refrigeration cycle Vapour-compression process with a reversible expansion engine Reverse Carnot cycle Ordinary vapour-compression cycle Air refrigeration cycle Vapour-compression process with a reversible expansion engine Reverse Carnot cycle ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A cylinder contains 640 gm of liquid oxygen. The volume occupied (in litres) by the oxygen, when it is released and brought to standard conditions (0°C, 760 mm Hg) will be __________ litres. Data insufficient; can't be computed 22.4 224 448 Data insufficient; can't be computed 22.4 224 448 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The free energy change for a chemical reaction is given by (where, K = equilibrium constant) T lnK -R lnK -RT lnK RT lnK T lnK -R lnK -RT lnK RT lnK ANSWER DOWNLOAD EXAMIANS APP
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