問題詳情

2. Water is heated to boiling under a pressure of 1.0 atm. When an electric current of 0.50 A from a 12 V supply is passed for 300 s through a resistance in thermal contact with it, it is found that 0.798 g of water is vaporized. Calculate the molar internal energy and enthalpy changes at the boiling point (373.15 K). The molar mass of water is 18.02 g mol-1. (20%)

參考答案

答案:A,D
難度:非常困難0.105645
統計:A(2463),B(159),C(64),D(278),E(1) #
個人:尚未作答書單:總統副總統彈劾制度

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