I need help with this question.

1. You have a tank of helium with a volume of 10 liters that is currently under 40 atm of pressure. If you open the valve on the tank and release the helium into a room with a volume of 10,000 liters, how many atmospheres of pressure will the helium now be under? Second, what will happen to the "space" between the helium atoms? Clearly explain your answer, including any assumptions you may need to make in order to answer the question

1 answer

Since PV is constant, and you have increased the volume by a factor of 1000, the pressure is reduced by a factor of 1000.