Chemical Engineering Thermodynamics Entropy of the system decreases, when A gas expands spontaneously from high pressure to low pressure Snow melts into water Water is converted into ice Both B & C A gas expands spontaneously from high pressure to low pressure Snow melts into water Water is converted into ice Both B & C ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing 50 mole % each of n- heptane and n- octane into pure compounds each at 1 atm is 2 RT -RT ln 0.5 -2 RT ln 0.5 0.5 RT 2 RT -RT ln 0.5 -2 RT ln 0.5 0.5 RT ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The efficiency of a Carnot heat engine operating between absolute temperatures T₁ and T₂ (when, T₁ > T₂) is given by (T₁ - T₂)/T₁. The co-efficient of performance (C.O.P.) of a Carnot heat pump operating between T₁ and T₂ is given by T₁/(T₁-T₂) T₁/T₂ T₂/(T₁-T₂) T₂/R1 T₁/(T₁-T₂) T₁/T₂ T₂/(T₁-T₂) T₂/R1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The expression for entropy change given by, ΔS = - nR ln (P₂/P₁), holds good for Expansion of a real gas Heating of an ideal gas Cooling of a real gas Reversible isothermal volume change Expansion of a real gas Heating of an ideal gas Cooling of a real gas Reversible isothermal volume change ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In a working refrigerator, the value of COP is always < 1 > 1 < 0 < 1 > 1 < 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics During Joule-Thomson expansion of gases None of these Entropy remains constant Temperature remains constant Enthalpy remains constant None of these Entropy remains constant Temperature remains constant Enthalpy remains constant ANSWER DOWNLOAD EXAMIANS APP
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