Question

Air is filled in a bottle at atmospheric pressure and it is corked at 35°C. If the cork can come out at 3 atmospheric pressure than upto what temperature should the bottle be heated in order to remove the cork

• A. 325.5°C
• B. 851°C
• C. 651°C
• D. None of these

Answer 1

Answer: (C)

651°C

Answer 2

At constant volume

$\frac{P_{1}}{T_{1}} = \frac{P_{2}}{T_{2}}$̃$T_{2} = \left( \frac{P_{2}}{P_{1}} \right)T_{1}$

̃ $T_{2} = \left( \frac{3P}{P} \right) \times (273 + 35) = 3 \times 308 = 924K$=651°C