Chemical Engineering Thermodynamics Refrigerants commonly used for domestic refrigerators are Propane NH₃ or CO₂ Freon-12 Ethyl chloride or methyle chloride Propane NH₃ or CO₂ Freon-12 Ethyl chloride or methyle chloride ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression refrigeration system results in Increased or decreased COP ; depending upon the type of refrigerant Same COP Decreased COP Increased COP Increased or decreased COP ; depending upon the type of refrigerant Same COP Decreased COP Increased COP 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 At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is 4.238 3.389 1.572 1.9398 4.238 3.389 1.572 1.9398 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Specific heat of a gas for a reversible adiabatic process is Infinity None of these Negative Zero Infinity None of these Negative Zero ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Claude gas liquefaction process employs cooling None of these By throttling At constant pressure By expansion in an engine None of these By throttling At constant pressure By expansion in an engine ANSWER DOWNLOAD EXAMIANS APP
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