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n = 0,01 mol
T1 = 303 K
T2 = 500 K
R = 8,31 J/molK
Dit : ΔU........?
ΔU = 3/2 n R (T2 - T1)
ΔU = 3/2 . 0,01. 8,31 (500 - 303)
ΔU = 3/2 . 0,01 . 8,31 (197)
ΔU = 24,55 J