問題詳情

15. A 5 kg piece of lead (specific heat 0.03 cal/g C°) having a temperature of 80° C is added to 500 g of water having a temperature of 20°. What is the final equilibrium temperature in °C of the system?
(A)79
(B)26
(C)54
(D)34

參考答案

答案:D
難度:困難0.2
統計:A(1),B(1),C(2),D(1),E(0)

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