Question

Calculate the pressure of 2.50 Liters of a gas at 25.0oC if it has a volume of 4.50 Liters at

STP.

Answer 1

P_2 =0.51 atm

Step-by-step explanation:

Given that:

Volume (V1) = 2.50 L

Temperature (T1) = 298 K

Volume (V2) = 4.50 L

at standard temperature and pressure;

Pressure (P1) = 1 atm

Temperature (T2) = 273 K

Pressure P2 = ??

Using combined gas law:

`(P_1V_1)/(T_1) = (P_2V_2)/(T_2) \\ \\ (1 *2.5)/(298) = (P_2*4.5)/(273)`

`0.008389261745 * 273 = 4.5P_2`

`P_2 =(0.008389261745 * 273 )/(4.5)`

`P_2 =0.51 \ atm`