States of Matter - Result Question 52
52. Match the gases under specified conditions listed in Column I with their properties/laws in Column II.
| Column I | Column II | ||
|---|---|---|---|
| A. | Hydrogen gas $(p=200 \hspace {1mm} atm$, $T=273 K)$ | p. | Compressibility factor $\neq 1$ |
| B. | Hydrogen gas $(p \sim 0, T=273 \hspace {1mm} K)$ | q. | Attractive forces are dominant |
| C. | $CO _2(p=1 \hspace {1mm} atm, T=273 \hspace {1mm} K)$ | r. | $p V=n R T$ |
| D. | Real gas with very large molar volume | s. | $p(V-n b)=n R T$ |
$(2007,6 M)$
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Answer:
Correct Answer: 52. $(A \rightarrow p,s; \hspace{1mm} B \rightarrow r;\hspace{1mm} C \rightarrow p,q; \hspace{1mm} D \rightarrow r)$
Solution:
A. At $p=200 \hspace {1mm} atm$, very high pressure, $Z>1$. Also, at such a high pressure, the pressure correction factor $\left(\dfrac{n^{2} a}{V^{2}}\right)$ can be ignored in comparison to $p$.
B. At $P \sim 0$, gas will behave like an ideal gas, $p V=n R T$.
C. $CO _2(p=1 \hspace {1mm} atm, T=273 K), Z<1$.
D. At very large molar volume, real gas behaves like an ideal gas.
BETA
