Question

If a gas is cooled from 323.0 K to 273.15 K and the volume is kept constant, what final pressure would result if the original pressure was 750.0 mmHg?

Answer 1

634 mmHg

Explanation:

From the Ideal Gas Laws we know that `((PV)/T)_1 = ((PV)/T)_2` Inserting our given values into this equation with the correct temperature values we get:

`(750 mmHg * V_1)/(323’K) = (P_2 * V_2)/(273.15’K)` ; `V_1 = V_2`

`P_2 = 750 * (273.15/323)`

`P_2 = 634 mmHg`