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If 17.14 mol of helium gas is at 12.9 ∘C and a gauge pressure of 0.387...

If 17.14 mol of helium gas is at 12.9 ∘C and a gauge pressure of 0.387 atm.

a)Calculate the volume of the helium gas under these conditions.

b) Calculate the temperature if the gas is compressed to precisely half the volume at a gauge pressure of 1.23 atm.

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