thermometer(10分)緊急

2007-11-07 1:02 am
why the bulb of thermometer should not touch the boothom of beaker during heating???

請多多指教
更新1:

想問會happen既事,thx

回答 (3)

2007-11-07 1:12 am
✔ 最佳答案
因為如果你將溫度計直接放係beaker ge底
,會令到溫度計ge bulb爆開,水銀或酒精就會
彈出黎,如果不慎彈到皮膚或眼精,就會構成
危險.
2007-11-07 1:10 am
認同上一位既ans
因為個beaker 會熱過你要量度既野
如果你touch到個beaker 量到既溫度會比你要量既野高左
啫係溫度會唔準~
2007-11-07 1:06 am
因為你係量度水的溫度,唔係beaker的溫度~~~~~~~~~


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