Weather balloon is filled with 62.3 L of helium gas at 760 mm of Hg after being released the volume increases to 130 L as the balloon rises, what is the pressure at this new altitude?

Answer : The pressure at this new altitude is, 364.2 mmHg

Explanation :

Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

or,

where,

= initial pressure = 760 mmHg

= final pressure = ?

= initial volume = 62.3 L

= final volume = 130 L

Now put all the given values in the above equation, we get:

Thus, the pressure at this new altitude is, 364.2 mmHg

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