W = P.ΔV = 5.10⁵.(2-5) = -15.10⁵J = -1500 kJ
ΔU = Q - W
-200 = Q - (- 1500)
Q = - 1700 kJ
Vb/Tb = Va/Ta
2/Tb = 5/420
Tb = 840/5 = 168 °K
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W = P.ΔV = 5.10⁵.(2-5) = -15.10⁵J = -1500 kJ
ΔU = Q - W
-200 = Q - (- 1500)
Q = - 1700 kJ
Vb/Tb = Va/Ta
2/Tb = 5/420
Tb = 840/5 = 168 °K