以下哪種傳熱方法最有優勢/快?

2013-03-04 2:41 am
a.Clothes being dried by hanging well above a campfire

b.a piece of chocolate melting in your mouth.

cthe surface of the moon cooling off after the sun sets

請詳細說明,謝謝

回答 (3)

2013-03-06 3:28 am
✔ 最佳答案
a.衣服被幹掛遠高於篝火晚會它是由向上的熱空氣從底下的篝火當前正在幹。

b.一塊巧克力融化在你的嘴。它是由在你嘴裡的溫暖唾液接觸熔化。

c.對月球表面的太陽落山后的降溫它的表面由於缺乏的太陽輻射熱量的降溫。

在我看來, c 最有優勢,因为輻射是發射熱的最佳途徑。
參考: me
2013-03-04 6:41 pm
以下哪種傳熱方法最有優勢/快?a.Clothes being dried by hanging well above a campfire
It is being dried by the upward current of hot air from a campfire underneath.
b.a piece of chocolate melting in your mouth.
It is melted by the contact of warm saliva in your mouth.
c. the surface of the moon cooling off after the sun sets
Its surface is cooling off due to lack of sun's radiated heat.
In my opinion, No. c or radiation is the best way of transmitting heat.

參考: Partly according to The Advanced Learner Dictionary of Current English with Chinese Translation by Oxford University Press in 1975
2013-03-04 3:06 am
(a) Convection

(b) Conduction

(c) Radiation


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