Answer:
-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
