Question

The air inside a bubble gum bubble is at atmospheric pressure. Imagine someone continuing to blow into that bubble. What happens when the bubble’s volume is doubled?

Answer 1

Answer: The correct answer is 'temperature will get doubled that is option D.

Explanation:

Suppose the volume of the bubble is V, at temperature T and Pressure exerted by atmosphere P.

When bubble is blown with more air until the volume doubles the initial volume:

The new volume of the bubble = V'=2V

The new Temperature of the air inside the bubble will change to T'.

And the atmospheric Pressure remains same.

According Charles law:

$Volume\propto Temperature$ (At constant Pressure)

$\frac{V_1}{T_2}=\frac{V_2}{T_2}$

$\frac{V}{T}=\frac{V'}{T'}$

$T'=\frac{2V\times T}{V}=2T$

So, this means that temperature will get 2 times the initial temperature of the gas.

Hence, the correct answer is 'temperature will get doubled that is option D.