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Alex asked in 科學及數學化學 · 1 decade ago

soft drinks入面既gas

What gas is present in soft drinks??

thz....thz...

3 Answers

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  • 1 decade ago
    Favorite Answer

    soft drink 係將 CO2 dissolve 落水,

    形成carbonic acid, H2CO3,

    當中都有部分仍然係CO2 molecule.

    由於有種acid present, 所以其實汽水有低pH,

    再加上汽水既糖分, 所以我地話飲多會壞牙,

    就係因為 酸會侵蝕牙上面既琺瑯質.

    當我地飲汽水, 會即刻有好多泡泡浮出黎.

    但係明明未飲既時侯見唔到咁多架wor ?

    原因係因為我地既熱力(飲落個口,個口暖架嘛)令杯汽水溫度上升,

    temperature increases, solubilily of gas decrease.

    杯水再溶唔到咁多CO2, 就會有好多CO2走晒出黎,

    就係汽水果d gas喇.

    所以汽水放入雪櫃, d汽冇咁易走晒,

    都係因為令CO2 dissolve得好d.

    有咩唔明再問:]

    希望幫到您.

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  • Samuel
    Lv 6
    1 decade ago

    The gas present in soft drinks is carbon dioxide (CO2).

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  • 1 decade ago

    carbon dioxide...

    即係二氧化碳....

    人體呼出黎既氣體之一!!

    Source(s): me
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