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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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lolyta lolyta
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10 years ago
A very flexible helium-filled balloon is released from the ground into the air at 20. ∘C. The initial volume of the balloon is 5.00 L, and the pressure is 760. mmHg. The balloon ascends to an altitude of 20 km, where the pressure is 76.0 mmHg and the temperature is −50. ∘C. What is the new volume, V2, of the balloon in liters, assuming it doesn't break or leak?
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#1
10 years ago
Just plug into the formula: P1V1/T1=P2V2/T2

[(760 mmHg) (5.00 L)] / 293 K = [(76.0 mmHg) (V2)] / 323 K

Cross multiply and divide to solve for V2.
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