(1 ) A 20kg sample of pure water at 40℃ is mixed with 20kg sample of pure water at 32℃,Using the average temperature of each sample,deternime the approximate net change in entropy of the total quantity of water.The apecific heat of pure water is

(1 ) A 20kg sample of pure water at 40℃ is mixed with 20kg sample of pure water at 32℃,Using the average temperature of each sample,deternime the approximate net change in entropy of the total quantity of water.The apecific heat of pure water is
(1 ) A 20kg sample of pure water at 40℃ is mixed with 20kg sample of pure water at 32℃,Using the average temperature of each sample,deternime the approximate net change in entropy of the total quantity of water.The apecific heat of pure water is 4186J/kg.K
（2）A nuclear power plant operates at 75 percent of its maximum theoretical efficency between temperatures of 660℃ and 360℃.If the plant produces electric energy at the rate of 1.1 GW,how much exhaust heat is discharged per hour?

(1 ) A 20kg sample of pure water at 40℃ is mixed with 20kg sample of pure water at 32℃,Using the average temperature of each sample,deternime the approximate net change in entropy of the total quantity of water.The apecific heat of pure water is
去看看你的英语老师吧,他(她)也许可以帮到你,如果不能的话,也许可以给你准确的翻译出来,再做物理就简单多了.