Calculate the number of kJ necessary to raise the temperature of 60 g

1.	Calculate the number of kJ necessary to raise the temperature of 60 g of aluminium from 35° C to 55 °C. Molar heat capacity of Al is 24 J /mol/ K
Answer» Energy required q = C_m x n x Δ T = 24(J/mol/K) X 2.22(mol) X 20 (K ) [Δ T = 55°C-35°C =20 °C=20 K] = 1066.8 J or 1.07 KJ

Calculate the number of kJ necessary to raise the temperature of 60 g of aluminium from 35° C to 55 °C. Molar heat capacity of Al is 24 J /mol/ K

Answer»

Energy required q = C_m x n x Δ T

= 24(J/mol/K) X 2.22(mol) X 20 (K )

[Δ T = 55°C-35°C =20 °C=20 K]

= 1066.8 J

or 1.07 KJ

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Calculate the number of kJ necessary to raise the temperature of 60 g of aluminium from 35° C to 55 °C. Molar heat capacity of Al is 24 J /mol/ K

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