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Specific heat capacity of aluminium is "...

Specific heat capacity of aluminium is `"0.21 cal.g"^(-1).^(@)C^(-1)`. What will be the thermal capacity and water equivalent of an aluminium strip of mass 200 g?

Text Solution

Verified by Experts

Here, m = 200 g and `"s = 0.21 cal.g"^(-1).^(@)C^(-1)`
Thermal capacity of the aluminium strip
`=m.s=200xx0.21="42 cal.^(@)C^(-1)`.
Water equivalent of the aluminium strip
`=(m.s)/(s_(w))=200xx0.21" "[because s_(w)="1 cal.g"^(-1).^(@)C^(-1)]`
`=42g.`
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