Which of the following is not a common refrigerant ?
Which of the following is not a common refrigerant ?
A. Freon-12
B. Ethylene
C. Ammonia
D. Carbon dioxide
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The value of gas constant ‘R’ is__________________?
The value of gas constant ‘R’ is__________________?A. 1.987 cal/gm mole °K
B. 1.987 BTU/lb. mole °R
C. Both A. and B
D. Neither A. nor BFor an ideal gas, the enthalpy__________________?
For an ideal gas, the enthalpy__________________?A. Increases with rise in pressure
B. Decreases with rise in pressure
C. Is independent of pressure
D. Is a path functionWhile dissolving a gas into a liquid at a constant temperature, the ratio of the concentration of the gas in the solution phase and in the gaseous phase is _______________?
While dissolving a gas into a liquid at a constant temperature, the ratio of the concentration of the gas in the solution phase and in the gaseous phase is _______________?A. Infinity
B. Unity
C. Constant
D. NegativeReduced pressure of a gas is the ratio of its__________________?
Reduced pressure of a gas is the ratio of its__________________?A. Pressure to critical pressure
B. Critical pressure to pressure
C. Pressure to pseudocritical pressure
D. Pseudocritical pressure to pressureRotary lime kiln is an example of a/an _____________ system?
Rotary lime kiln is an example of a/an _____________ system?A. Closed
B. Open
C. Isolated
D. Non-thermodynamicThe necessary and sufficient condition for equilibrium between two phases is_________________?
The necessary and sufficient condition for equilibrium between two phases is_________________?A. The concentration of each component should be same in the two phases
B. The temperature of each phase should be same
C. The pressure should be same in the two phases
D. The chemical potential of each component should be same in the two phases