翻譯英文[注意:內裡英文是有關science][20點]

2009-10-28 7:54 am
1.When flavored mentos with a smooth waxy coating were tested in carbonated
water, no reaction occurred, whereas standard Mentos added to carbonated water
formed a small eruption, by Myth Busters claim, affirming the nucleation-site
theory. According to the Myth Busters, the surface of the mint Mentos is littered
with many small holes, allowing CO2 bubbles to form very rapidly and in great
quantity, in turn causing the jet of foam.

2.When mentos are dropped into soda, the gellan gum and gum arabic of the candy dissolves and breaks the surface tension. This disturbs the water connection, so
that it takes less work to expand and form new bubbles. Each Mentos candy has
thousands of tiny pores all over its surface. These tiny pores function as nucleation sites, perfect places for carbon dioxide bubbles to form. As soon as the Mentos
enter the soda, bubbles form all over their surface. They quickly sink to the bottom, causing carbon dioxide to be released by the carbonated liquid with which they come into contact along the way. The sudden increase in pressure pushes all of the
liquid up and out of the bottle.

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回答 (1)

2009-10-29 8:34 pm
✔ 最佳答案
1. 因菓味萬樂珠有平滑蠟面表層,放進碳酸水進行測試時,將沒有任學化學反應。而薄荷萬樂珠加進碳酸水,卻會出現小型氣泡爆發的情況,這證明了Myth Busters所提倡的核點理論。根據Myth Busters理論,薄荷萬樂珠表面有很多小孔,有利於二氧化碳氣泡迅速大量形成,繼而導致泡沫噴射的反應。


2. 當萬樂珠進入梳打水,糖果中的結蘭膠及阿拉伯膠將被溶化,並破壞了水的表面張力,令新氣泡更易於形成及迅速膨脹。每顆萬樂珠的表面有數以千計的小孔,這些小孔將作為「核點」,是形成二氧化碳氣泡的理想據點。當萬樂珠剛進入梳打水,整個表面即時形成大量氣泡。糖果快速下沉,其時與碳酸水的接觸,導致二氧化碳釋放。壓力暴增,最後令液體被推出樽外。
參考: hkslot


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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091027000051KK01874

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