Question

A perfect gas at 27°C is heated at constant pressure till its volume is double. The final temperature is
1. 54°C
2. 108°C
3. 327°C
4. 600°C
5. 800° C

Answer 1

Correct Answer - Option 3 : 327°C

Concept:

As the gas is heated at constant pressure, so by applying Charles’s law

\(\frac{{{V_2}}}{{{V_1}}} = \frac{{{T_2}}}{{{T_1}}}\)

Calculation:

Given:

T₁ = 27°C = 300 K, V₁ = V, V₂ = 2V

Therefore, \(2= \frac{{{T_2}}}{{300}} \)

T₂ = 600 K = 600 - 273 = 327°C