a toy balloon has volume of 1450 ml. when filled with Helium at a temperature of 17 degree C and pressure 750 mm of mercury. it rises to and altitude where temperature falls to -23 degree centigrade and pressure falls to 40% of the original. what is the volume?
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Answer:
use this formula
Explanation:
v1p1/T1 = v2p2/t2
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