007 10.0 points A helium balloon has a volume of 21.8 L when the pressure is...

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science chemistry

Answer 1

Answer #1

Helium(He) is an Ideal Gas.

By using ideal gas equation pV = nRT where p(pressure) is constant (Given) and n,R are constant. Hence, V/T would be constant.

So, Vi / Ti = Vf / Tf --->(1) (Vi and Vf are initial and final volume, Ti and Tf are initial and final temperature).

Given data: Vi = 21.8 L, Ti = 19 degree celcius = 292 K and Tf = -11 degree celcius = 262 K.

By using equation (1): 21.8 / 292 = Vf / 262 => Vf = 19.56 L

Hence the final temperature would be 19.56 L.

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Answer 2

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