Question

The values of $T_{c}$ of a few gases is given below: $H _{2}: 33.2 \,K , O _{2}: 154.3 K , He : 5.3\, K$ and $CO _{2}: 304.10 \,K$ What is the correct increasing order of liquefaction of the above gases?

• A. $He < O _{2}< H _{2}< CO _{2}$
• B. $He < H _{2}< O _{2}< CO _{2}$
• C. $CO _{2}< O _{2}< H _{2}< He$
• D. $O _{2}< CO _{2}< H _{2}< He$

Answer 1

Answer: (B)

Higher the value of $T_{c}$, more easily the gas can be liquefied.