[問題] Thermodynamics
大家新年吉祥，
又來發問些觀念問題，
1.A large fraction of the thermal energy generated in the engine of a car is
rejected to the air by the radiator through the circulating water. Should the
radiator be analyzed as a closed system or as an open system? Explain.
這題我問學長，學長認為system is control volume, so is open system
但是我還不能理解怎麼是control volume?
是因為冷卻循環水有流進和流出?
或者有什麼不同觀點判斷?
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