The compressibility factor of an ideal gas is:
1. zero
2. infinite
3. 1
4. -1
The compressibility factor of a gas is less than unity at STP. The correct statement among the following is -
1. > 22.4 L
2. < 22.4 L
3. = 22.4 L
4. = 44.8 L
Consider the following graph:
The curve that represents CO2 gas is -
1. X
2. Y
3. Both X and Y
4. Cannot predict from the graph
At high pressure, the compressibility factor 'Z' is equal to -
1. Unity
4. Zero
In the given figure, the curve representing an ideal gas is-
1. B only
2. C and D only
3. E and F only
4. A and B only
The compressibility factor for 1 mol of a van der Waals gas at and 100 atmospheric pressure is found to be 0.5. The volume of gas is-
1. 2.0224 L
2. 1.4666 L
3. 0.8542 L
4. 0.1119 L
The compressibility factor for H2 and He is usually-
1. >1
2. =1
3. <1
4. Zero
The density of a gaseous substance at 1 atm pressure and 773 K is 0.4 g/L. If the molecular weight of the substance is 30, the dominant force existing among gas molecules is/are-
1. Repulsive
2. Attractive
3. Both (1) & (2)
4. None of these