Chemical Engineering Thermodynamics Which of the following liquid metals has the highest thermal conductivity? Molten potassium Molten sodium Mercury Molten lead Molten potassium Molten sodium Mercury Molten lead ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In a working refrigerator, the value of COP is always < 0 > 1 < 1 < 0 > 1 < 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics An ideal liquid refrigerant should Not have a subatmospheric vapour pressure at the temperature in the refrigerator coils Have low specific heat Not have unduly high vapour pressure at the condenser temperature Both A and B Not have a subatmospheric vapour pressure at the temperature in the refrigerator coils Have low specific heat Not have unduly high vapour pressure at the condenser temperature Both A and B 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 Increased or decreased COP ; depending upon the type of refrigerant Decreased COP Enhanced COP No change in the value of COP Increased or decreased COP ; depending upon the type of refrigerant Decreased COP Enhanced COP No change in the value of COP ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Entropy of the system decreases, when Snow melts into water Both B & C A gas expands spontaneously from high pressure to low pressure Water is converted into ice Snow melts into water Both B & C A gas expands spontaneously from high pressure to low pressure Water is converted into ice ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Heat of formation of an element in its standard state is > 0 < 0 A function of pressure > 0 < 0 A function of pressure ANSWER DOWNLOAD EXAMIANS APP
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