Home
Class 11
CHEMISTRY
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
Promotional Banner

Similar Questions

Explore conceptually related problems

The molar heat capacity of water is 75 JK^(-1)" mole"^(-1) . What is the amount of heat required to raise the temperature of 100 g of water from 300 K to 302.4 K?

Calculate the number of kJ of heat necessary to raise the temperature of 60.0 g of aluminium from 35^(@)C to 55^(@)C . Molar heat capacity of Al is 24 J g m^(-1) .

The thermal capacity of 40 g of aluminium (specific heat =0.2 cal//gm^(@)C )

The quantity of heat required to raise the temperature of 2000 g of water from 10^@C to 50^@C is