- (A) It is exothermic
- (B) It is isenthalpic
- (C) It takes place isothermally
- (D) It takes place at constant volume
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- (A) Two different gases behave similarly, if their reduced properties (i.e. P, V and T) are same
- (B) The surface of separation (i. e. the meniscus) between liquid and vapour phase disappears at the critical temperature
- (C) No gas can be liquefied above the critical temperature, howsoever high the pressure may be.
- (D) The molar heat of energy of gas at constant volume should be nearly constant (about 3 calories)
- (A) 1.572
- (B) 1.9398
- (C) 3.389
- (D) 4.238
- (A) V1/V2
- (B) V2/V1
- (C) V1 – V2
- (D) V1.V2
- (A) Contracts
- (B) Expands
- (C) Does not change in volume
- (D) Either (A),
- (A) Zero
- (B) One
- (C) Two
- (D) Three
- (A) The surface tension vanishes
- (B) Liquid and vapour have the same density
- (C) There is no distinction between liquid and vapour phases
- (D) All A,
- (A) Less than
- (B) More than
- (C) Same as
- (D) Not related to
- (A) Below
- (B) At
- (C) Above
- (D) Either
- (A) P + F – C = 2
- (B) C = P – F + 2
- (C) F = C – P – 2
- (D) P = F – C – 2
