A tank contains helium gas at 490 mmHg,nitrogen gas at 0.75 atm,and neon at 520 torr.What is the total pressure in atm?

Question

Quizplus · Accepted Answer

The total pressure in the tank can be found by adding the partial pressures of all gases, converting them to the same unit (atm) before doing so. 1 atm = 760 mmHg = 760 torr. Therefore, helium is 490 mmHg * (1 atm / 760 mmHg) = 0.6447 atm, nitrogen is 0.75 atm (already in atm), and neon is 520 torr * (1 atm / 760 torr) = 0.6842 atm. Adding these together gives a total pressure of approximately 2.1 atm.

A Tank Contains Helium Gas at 490 MmHg,nitrogen Gas at 0.75