Question

If an ideal gas has a volume V at 27°C and it is heated at a constant pressure, so that its volume becomes 1.5V, then the value of final temperature is?

(a) 327K

(b) 177°C

(c) 873K

(d) 600°C

I had been asked this question in an online interview.

The above asked question is from Ideal Gases topic in portion Kinetic Theory of Gases of Engineering Physics I

Answer 1

The correct option is (b) 177°C

To explain: At constant pressure,

V2/V1 =T2/T1

1.5V/V=T2/(273+27)

T2=300×1.5=450K=177℃.