Q1.A metal block is first immersed in boiling water for some time.The block is then transferred to a cup of cold water.The temperature of the water is measured.
The result of the experiment is as follow:
Mass of metal block=0.8kg
Mass of water in the cup =0.3kg
Initial temperature of water in the cup=23℃
Final temperature of water in the cup=38℃
Find the specific heat capacity of the metal(in Jkg -1 K-1)
*詳細列式,解析
物理題1條吾識,教下我(5分)
2007-12-10 2:01 am
回答 (1)
2007-12-10 6:13 am
✔ 最佳答案
A metal block is first immersed in boiling water for some time.呢句既係指Initial temperature of metal block=100℃
因為specific heat capacity of the water=4200,所以
loss in heat energy of metal block=loss in heat energy of water
0.8C dT=0.3*4200 dT
0.8C(100-38)=0.3*4200 (38-24)
C=11025/31=355.6(Jkg -1 K-1)
幫你做完功課啦,比分我呀=.=
收錄日期: 2021-04-20 18:20:25
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