Chemical Engineering Thermodynamics Which of the following has the minimum value of COP for a given refrigeration effect? 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 Air refrigeration cycle ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics What is the number of degrees of freedom for liquid water in equilibrium with a mixture of nitrogen and water vapor? 3 0 2 1 3 0 2 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect? Vapor compression cycle using expansion valve Air refrigeration cycle Vapor compression cycle using expansion engine Carnot refrigeration cycle Vapor compression cycle using expansion valve Air refrigeration cycle Vapor compression cycle using expansion engine Carnot refrigeration cycle ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics One ton of refrigeration capacity is equivalent to the heat removal rate of 50 k cal/hr 200 BTU/minute 200 BTU/day 200 BTU/hr 50 k cal/hr 200 BTU/minute 200 BTU/day 200 BTU/hr ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called __________ temperature. Critical Reduced Boyle Inversion Critical Reduced Boyle Inversion ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in Decreased COP No change in the value of COP Increased or decreased COP ; depending upon the type of refrigerant Enhanced COP Decreased COP No change in the value of COP Increased or decreased COP ; depending upon the type of refrigerant Enhanced COP ANSWER DOWNLOAD EXAMIANS APP
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