physic 問題 快進!!!!!!!(2)

it will produce steam when temperture of water is higher than 100C.

Under nroaml pressure, water boils at 100'C. Hence, it is not suitable to be used a coolant for cooling machineries operating at high temperature.

2011-06-04 17:06:13 補充：
sorry...a typo: the first sentence should read "Under normal pressure,..."