Chemical Engineering Thermodynamics For spontaneous changes in an isolated system (S = entropy) Ds > 0 Ds = Constant Ds = 0 Ds <0 Ds > 0 Ds = Constant Ds = 0 Ds <0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is a widely used refrigerant in vapour compression refrigeration system (using large centrifugal compressor)? Liquid sulphur dioxide Methyl chloride Freon Ammonia Liquid sulphur dioxide Methyl chloride Freon Ammonia ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Entropy of a substance remains constant during a/an __________ change. Reversible adiabatic Reversible isothermal Irreversible isothermal None of these Reversible adiabatic Reversible isothermal Irreversible isothermal None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Refrigerants commonly used for domestic refrigerators are Propane NH₃ or CO₂ Ethyl chloride or methyle chloride Freon-12 Propane NH₃ or CO₂ Ethyl chloride or methyle chloride Freon-12 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Heat pump Works on Carnot cycle Accomplishes only space heating in winter Accomplishes both A and B Accomplishes only space cooling in summer Works on Carnot cycle Accomplishes only space heating in winter Accomplishes both A and B Accomplishes only space cooling in summer 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. Temperature Kinematic viscosity None of these Work Temperature Kinematic viscosity None of these Work ANSWER DOWNLOAD EXAMIANS APP
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