Question

Constant-volume calorimeters are sometimes calibrated by running a combustion reaction of known ΔE and measuring the change in temperature. For example, the combustion energy of glucose is 15.57 kJ/g. When a 2.500 g sample of glucose burns in a constant volume calorimeter, the calorimeter temperature increases from 21.45 to 23.34°C. Find the total heat capacity of the calorimeter (in kJ/K).

Answer 1

15.57 kJ/g x 2.5 g = Ccal x (Tfinal-Tinitial)
Substitute and solve for Ccal.

Answer 2

13.4 KJ

Answer 3

What is question all about. Please