Question

An ideal gas filled at pressure of $2atm$ and temp of $300K$, in a balloon is kept in vacuum with in a large container wall of balloon is punctured then container temperature:

• A. decreases
• B. increases
• C. remain constant
• D. unpredictable

Answer 1

The correct option is A decreases

When the balloon is punctured,

The gas in it expands in the large container

Hence,

It’s volume increases and according to Boyle’s law $PV=cons\tan t$. So,

Volume increase, Pressure Decreases.

$\frac{PV}{T}$ Is constant according to combined gas law, temperature remains constant.

$w=-q$

$\Delta V=0$

$\Delta U=q+w=0$

Therefore temperature remains constant.

This is the required answer.