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Verified answer
TERMODINAMIKA• mesin Carnot
η = 60% = 0,6
T₂ = 24 °C = 297 K
T₁ = __?
η = 1 - T₂/T₁
0,6 = 1 - 297/T₁
297/T₁ = 0,4
T₁ = 297/0,4
T₁ = 742,5 K = 469,5 °C ✔️