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A very flexible helium-filled balloon is released from the ground into the air at 20degree C The initial volume of the balloon is 5.00L , and the pressure is 760mmHg. . The balloon ascends to an altitude of 20Km , where the pressure is 76.0mmHg and the temperature is -50degree C What is the new volume,V2 , of the balloon in liters, assuming it doesn't break or leak? plss don't know how to solve this pls if you show me how to do it plsss. thank you

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  1. (P1V1/T1) = (P2V2/T2)
    T1 and T2 must be in kelvin.

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