Chemistry - Real Gas Question with Solution | TestHub
Match each real-gas situation in Column I with the statements in Column II that describe it (a Column I entry may match more than one Column II entry):
Column I (Situation) | Column II (Statement) |
|---|---|
(P) at 300 K, below the pressure at which its Z is minimum | (1) |
(Q) at 300 K and 100 atm | (2) |
(R) a real gas at its Boyle temperature as P tends to 0 | (3) Z increases as P increases |
(S) a van der Waals gas with (only 'a' acts) | (4) Z decreases as P increases |
| (5) Z is close to 1 |
Choose the option with the correct matching:
Options:
Answer:
Solution:
(P) Attractions dominate, so (1), and Z falls as P rises until the minimum is reached (4).
(Q) at 300 K is above its Boyle temperature, so the volume term dominates: (2) and Z rises with P (3).
(R) At the two corrections cancel as P tends to 0, so Z is close to 1 (5).
(S) With , which is below 1 (1), and V falls as P rises so Z falls (4).
Correct matching: P to 1,4; Q to 2,3; R to 5; S to 1,4. Answer: (C).
