A balloon is filled with 30L of helium gas at 1atm. What is the volume when balloon rises to an attitude where the pressure is only 0.25 atm?

Explanation:

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In this case, since Helium is undergoing a volume-pressure change, according the Boyle's law, we infer the following equation is used:

Thus, since we are not given the volume at 0.25 atm, we can solve for V2 to do so:

Thus, we plug in to obtain:

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a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.

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