A. Pressure to critical pressure
B. Critical pressure to pressure
C. Pressure to pseudocritical pressure
D. Pseudocritical pressure to pressure
Related Mcqs:
- With increase in reduced temperature, the fugacity co-efficient of a gas at constant reduced pressure___________________?
A. Increases
B. Decreases
C. Remain same
D. Decreases linearly - If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will_________________?
A. Be reduced to 1/4th
B. Increase four times
C. Increase two times
D. None of these - If two gases have same reduced temperature and reduced pressure, then they will have the same____________________?
A. Volume
B. Mass
C. Critical temperature
D. None of these - Compressibility factor-reduced pressure plot on reduced co-ordinates facilitates__________________?
A. Use of only one graph for all gases
B. Covering of wide range
C. Easier plotting
D. More accurate plotting - The compressibility factor of a gas is given by (where, V1 = actual volume of the gas V2 = gas volume predicted by ideal gas law)____________________?
A. V1/V2
B. V2/V1
C. V1 – V2
D. V1.V2 - As pressure approaches zero, the ratio of fugacity to pressure (f/P) for a gas approaches____________________?
A. Zero
B. Unity
C. Infinity
D. An indeterminate value - The density of a gas ‘X’ is twice that of another gas ‘Y’. If the molecular weight of gas ‘Y’ is ‘M’; then the molecular weight of the gas ‘X’ will be________________?
A. 2M
B. M/2
C. M
D. M/4 - The ratio of existing moles of vapor per mole of vapor free gas to the moles of vapor that would be present per mole of vapor free gas, if the mixture were saturated at the existing temperature & pressure, is termed as the_____________________?
A. Relative humidity
B. Relative saturation
C. Percentage saturation
D. None of these - Entropy of an ideal gas depends upon its__________________?
A. Pressure
B. Temperature
C. Both A. & B
D. Neither A. nor B - Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ______________ with the increase of reduced temperature?
A. Decreases
B. Increases
C. Remains constant
D. Decreases logarithmically
