# A weather balloon has a volume of (7.20x10^1) L when at the surface where the pressure is (9.3000x10^1) kPa and a temperature is (2.6000x10^2) K. (see more below)?

##### 1 Answer

The pressure is

#### Explanation:

This looks like a case where we can use the **combined gas laws**:

#color(blue)(bar(ul(|color(white)(a/a)(p_1V_1)/T_1 = (p_2V_2)/T_2color(white)(a/a)|)))" "#

We can rearrange this formula to get

#p_2 = p_1 × V_1/V_2 × T_2/T_1#

In this problem,

∴