# Question #4a2ed

##### 1 Answer

May 12, 2017

The final temperature is -149 °C.

#### Explanation:

Since the volume is constant, this is an example of a problem involving **Gay-Lussac's Pressure-Temperature Law**:

#color(blue)(bar(ul(|color(white)(a/a)p_1/T_1=p_2/T_2color(white)(a/a)|)))" "#

We can rearrange this formula to get

#T_2 = T_1 × p_2/p_1#

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