Q. 1
The critical temperature of gas in terms of Van der Waals constant
- a. 3b
- b. a/27b2
- c. 2a/Rb
- d. 8a/27Rb
- e. a/bR
- Answer: D
-
Explaination: Explanation: a- Van der Waals constant
R-Universal gas constant
b- Excluded volume
Critical temperature is defined as the temperature above which a gas cannot be liquefied by applying pressure. It’s denoted as Tc. It can be expressed in terms of Van der Waals constant Tc = 8a/27Rb. It’s derived from the Vander Waals equation.
Q. 2
The order of randomness of the atoms or ions in solids, liquids and gases.
- a. Solid
- b.
- c.
- d.
- e.
- Answer: A