2008-8-19 02:06 PM
彤兒`
LOCK PLZ - science問題(f.1-)
science問題:)
一題50元
What is the density of substance X with a mass of 8 g and a volume of cm3?
If the density of a gas is increased,how will the gas pressure change?Why?
thz
[[i] 本帖最後由 彤兒` 於 2008-8-20 10:24 AM 編輯 [/i]]
2008-8-19 03:24 PM
×sIu幻``
有冇圖俾你架先=.=
2008-8-19 04:25 PM
彤兒`
得問題..
無相比我地睇嫁啵!
2008-8-19 06:17 PM
葳
What is the density of substance X with a mass of 8 g and a volume of cm3?
cm3是1cm3? 如果是答案就是8/1=8(g/cm3)
If the density of a gas is increased,how will the gas pressure change?Why?
increase, 同體積的氣體重量增加=氣體分子數增加=氣體壓力增加 (不懂怎樣解釋這題囧
希望有幫到妳=D
2008-8-19 06:32 PM
彤兒`
回復 #4 葳 的帖子
開sell po:)
thz
2008-8-19 06:37 PM
葳
有幫到你就好啦=]
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