calculate the heat required by aluminum in KJ/g,when 1 kg of aluminum is heated from 25 degree celcisus to 415 degree celcisus. (heating is given by LPG.)
Aluminum specific heat: 900J/(kg*K) Your answer will have units of kJ, not kJ/g. Aluminum's specific heat in kJ/g is simply 9.0x10^-4. Energy required to heat 1kg of Al from 25 degrees C to 415 degrees C: 900 * 1 * (415-25) = 351kJ
