Chemical Engineering Thermodynamics Co-efficient of Performance (COP) of a refrigerator is the ratio of the Lower to higher temperature Higher to lower temperature Refrigeration obtained to the work required Work required to refrigeration obtained Lower to higher temperature Higher to lower temperature Refrigeration obtained to the work required Work required to refrigeration obtained ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Work done in case of free expansion is Zero None of these Indeterminate Negative Zero None of these Indeterminate Negative ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The standard state of a gas (at a given temperature) is the state in which fugacity is equal to Both A & B Activity Neither A nor B Unity Both A & B Activity Neither A nor B Unity ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is an undesirable characteristics of a refrigerant ? It should be non-explosive Its vapor pressure at the condenser temperature should be very high It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils None of these It should be non-explosive Its vapor pressure at the condenser temperature should be very high It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The equation, PV = nRT, is best obeyed by gases at Low pressure & high temperature High pressure & low temperature Low pressure & low temperature None of these Low pressure & high temperature High pressure & low temperature Low pressure & low temperature None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics If atmospheric temperature and dew point are nearly equal, then the relative humidity is Almost 100% Zero 50% Unpredictable Almost 100% Zero 50% Unpredictable ANSWER DOWNLOAD EXAMIANS APP
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