A mixture of krypton and neon gas is compressed from a volume of 96.0L to a volume of 68.0L, while the pressure is held constant at 15.0atm. Calculate the work done on the gas mixture. Be sure your answer has the correct sign (positive or negative) and the correct number of significant digits.

Question

Phoebe Townsend

Chemistry

17 July, 08:46

A mixture of krypton and neon gas is compressed from a volume of 96.0L to a volume of 68.0L, while the pressure is held constant at 15.0atm. Calculate the work done on the gas mixture. Be sure your answer has the correct sign (positive or negative) and the correct number of significant digits.

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Answers (1)

Know the Answer?

Amanda Barr · Answer 1

-42556.5 J

Explanation:

From gas law,

The work done by gas is given as,

W = PΔV ... Equation 1

Where W = Work done on the gas mixture, P = Pressure of the gas mixture, ΔV = Change in volume of the gas mixture.

Given: P = 15 atm = (15*101325) N/m² = 1519875 N/m², ΔV = 68-96 = - 28 L = - 28/1000 = - 0.028 m³

Substitute into equation 2

W = 1519875 (-0.028)

W = - 42556.5 J

Hence the work done by the gas mixture = - 42556.5 J