Question

To expel half the mass of air from a large flask at ${27}^o$C, it must be heated to:

• A. ${54}^o$C
• B. ${177}^o$C
• C. ${277}^o$C
• D. ${327}^o$C

Answer 1

Answer: (D)

${327}^o$C

Let us consider the problem:-

Let us consider the

$PV=nRT$

Since, at constant $P$ and $V$,

$n_1{T}_1=n_2{T}_2$

Implies that

$n_1\times 100=\frac{n_1}{2}\times T$

Where,

$T=600k$

$={327}^{\circ }C$