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Molar heat capacity of aluminium is 25 J...

Molar heat capacity of aluminium is `25 JK^(-1) mol^(-1)`.The heat necessary to raise the temperature of 54 g of aluminium (Atomic mass 27 g `mol^(-1)`) from `30^(@)C` to `50^(@)C` is

A

1.5kJ

B

0.5kJ

C

1.0kJ

D

2.5kJ

Text Solution

Verified by Experts

The correct Answer is:
C
`Q= nC Delta T, n= (54)/(27)=2`
`=2 xx 25 xx 20= 1000J`
Q= 1.0 kJ
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