Question

A sample of air has a volume of 140.0 mL at 67°C.

At what temperature would its volume be 50.0 mL at
constant pressure?

Answer 1

about 121.5 K or -151.7 °C

Step-by-step explanation:

Volume of an ideal gas is proportional to the absolute temperature. At 67 °C, the absolute temperature is 67+273.15 K, or 340.15 K.

Then 50.0/140.0 times that temperature is ...

(5/14)(340.15 K) ≈ 121.482 K ≈ -151.668 °C

The volume would be 50.0 mL at a temperature of about 121.5 K or -151.7 °C.