two flasks are connected with a stopwingspan. flask #1 has a volume of 2.5L and contains oxygen gas at a pressure of .7atm. Flask #2 has a colume of 3.8L and contains hydrogen gas at a pressure of 1.25atm. when the stopwingspan between the two flasks is opened and the gases mix, what will the resulting pressure of the gas mixture be?

Question

anonymous · Answer

|dw:1388118995402:dw|

Individually each gas is ideal and follows the characters of the ideal gas law.

flask#1

PV=nRT

n = PV/RT

for flask # 2

PV=nRT

n = PV/RT
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When the two flasks are connected the volume add are combined and the number of moles of each gas are combined.
just calculate the new pressure.

P =nRT/V