Chemical Engineering Thermodynamics Which of the following has the minimum value of COP for a given refrigeration effect? 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 Ordinary vapour-compression cycle ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics If the internal energy of an ideal gas decreases by the same amount as the work done by the system, then the None of these Process must be isobaric Temperature must decrease Both listed here None of these Process must be isobaric Temperature must decrease Both listed here ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics What happens in a reversible adiabatic expansion process? Heating takes place Pressure is constant Cooling takes place Temperature is constant Heating takes place Pressure is constant Cooling takes place Temperature is constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In an isothermal process on an ideal gas, the pressure increases by 0.5 percent. The volume decreases by about __________ percent. 1 0.25 0.75 0.5 1 0.25 0.75 0.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system U decreases but S is constant U is constant but S decreases U and S both decreases Its internal energy (U) decreases and its entropy (S) increases U decreases but S is constant U is constant but S decreases U and S both decreases Its internal energy (U) decreases and its entropy (S) increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Generation of heat by friction is an example of a/an __________ change. Reversible Irreversible Isothermal Adiabatic Reversible Irreversible Isothermal Adiabatic ANSWER DOWNLOAD EXAMIANS APP
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