Free energy change at equilibrium is Indeterminate Positive Zero Negative TRUE ANSWER : ? YOUR ANSWER : ?
If atmospheric temperature and dew point are nearly equal, then the relative humidity is Unpredictable Almost 100% 50% Zero TRUE ANSWER : ? YOUR ANSWER : ?
One ton of refrigeration capacity is equivalent to the heat removal rate of 200 BTU/minute 50 k cal/hr 200 BTU/hr 200 BTU/day TRUE ANSWER : ? YOUR ANSWER : ?
Absolute zero temperature signifies the Temperature of the heat reservoir to which a Carnot engine rejects no heat Temperature of the heat reservoir to which a Carnot engine rejects all the heat that is taken in None of these Minimum temperature attainable TRUE ANSWER : ? YOUR ANSWER : ?
(∂E/∂T)V is the mathematical expression for CV None of these Enthalpy change Free energy change TRUE ANSWER : ? YOUR ANSWER : ?
(∂T/∂P)H is the mathematical expression for Joule-Thompson co-efficient None of these Specific heat at constant pressure (Cp) Specific heat at constant volume (Cv) TRUE ANSWER : ? YOUR ANSWER : ?
The partial pressure of each constituent present in an alloy is __________ the total vapor pressure exerted by the alloy. Equal to Less than Either B or C; depends on the type of alloy More than TRUE ANSWER : ? YOUR ANSWER : ?
At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is 4.238 1.572 3.389 1.9398 TRUE ANSWER : ? YOUR ANSWER : ?
Out of the following refrigration cycles, which one has the minimum COP (Co-efficient of performance)? Air cycle Carnot cycle Vapour compression with a reversible expansion engine Ordinary vapour compression cycle TRUE ANSWER : ? YOUR ANSWER : ?
Co-efficient of Performance (COP) of a refrigerator is the ratio of the Higher to lower temperature Lower to higher temperature Work required to refrigeration obtained Refrigeration obtained to the work required TRUE ANSWER : ? YOUR ANSWER : ?