The pressure exerted by a mixture of 3 . 2 g of methane and 4 . 4 g of CO 2 contained in a 9 dm 3 flask at 27 ° C is

Step-by-step solution

The pressure exerted by methane is P = nRT V = 0 . 2 × 8 . 314 × 300 9 × 10 − 3 = 5 . 54 × 10 4   Pa The pressure exerted by CO 2 ​ is P ' = n ' RT V = 0 . 1 × 8 . 314 × 300 9 × 10 − 3 = 2 . 77 × 10 4   Pa The total pressure is P + P ' . = 5 . 54 × 10 4   Pa + 2 . 77 × 10 4   Pa = 8 . 31 × 10 4   Pa