微波爐最高能夠將食物加熱至幾多度?

2008-06-15 11:15 pm
如題..

又或者係..微波爐飯盒應該要最高承受到幾多度先算係安全?

thanks

回答 (2)

2008-06-20 1:55 am
✔ 最佳答案
(1) 微波爐最高能夠將食物加熱至幾多度?
答:因為微波爐的微波是為水分子加熱,當水分子加熱到100度C時,就會變成氣體流失,所以微波爐的應用溫度是100度C。但因為沒有水分的食物在吸收微波後,仍會慢慢地升溫,直到燒焦成炭為止,所以可以超過一千度。

(2) 微波爐飯盒應該要最高承受到幾多度先算係安全?
答:因為微波爐的微波是為水分子加熱,當水分子加熱到100度C時,就會變成氣體流失,所以微波爐的應用溫度是100度C。即微波爐飯盒的最高承受溫度是100度C就可以了。
2008-06-17 5:49 am
Generally, from thermodynamic principle, an object reaches a steady temprature when dynamic thermal equilibrium is reached.

That is, heat loss from the object = heat gain from microwave

Thus, the highest temperature depends on
1. the power of the microwave oven, as this leads to the heat gained by the food to be cooked.
2. the size and insulation of the oven, as this leads to heat loss from the food and the air in the oven cavity.
3. The ambient air temperature.


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