Chemical Engineering Thermodynamics In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in Increased or decreased COP ; depending upon the type of refrigerant Decreased COP No change in the value of COP Enhanced COP Increased or decreased COP ; depending upon the type of refrigerant Decreased COP No change in the value of COP Enhanced COP ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is an undesirable characteristics of a refrigerant ? It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils Its vapor pressure at the condenser temperature should be very high It should be non-explosive None of these It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils Its vapor pressure at the condenser temperature should be very high It should be non-explosive None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Measurement of thermodynamic property of temperature is facilitated by __________ law of thermodynamics. Zeroth None of these 1st 3rd Zeroth None of these 1st 3rd ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Rotary lime kiln is an example of a/an __________ system. Non-thermodynamic Isolated Closed Open Non-thermodynamic Isolated Closed Open ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The melting point of paraffin wax (which contracts on solidification) __________ with pressure rise. Remains unchanged Decreases linearly Increases Decreases Remains unchanged Decreases linearly Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In the equation, PVn = constant, if the value of n = 1, then it represents a reversible __________ process. Isobaric Adiabatic Polytropic Isothermal Isobaric Adiabatic Polytropic Isothermal ANSWER DOWNLOAD EXAMIANS APP
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