65-L container holds a mixture of two gases at 31 C. The partial pressures of gas A and gas B, respectively, are 0.206 atm and 0.867 atm. If 0.

A 8.65-L container holds a mixture of two gases at 31 °C. The partial pressures of gas A and gas B, respectively, are 0.206 atm and 0.867 atm. If 0.200 mol a third gas is added with no change in volume or temperature, what will the total pressure become?