Question

When 0. 25 g of the organic compound naphthalene are burned in a bomb calorimeter, the temperature of the water in the calorimeter increases from 24. 00°C to 26. 43 °C. The calorimeter's heat capacity is 4. 13 kJ/°C. How much heat (q_{rxn}) in kilojoules is released by the combustion of the naphthalene?.

Answer 1

-2.5089 kJ is the amount of heat is released by the combustion of the naphthalene.

How we calculate the released heat?

Released amount of heat is calculated by using the below formula:

Q = -mcΔT, where

m = mass of naphthalene = 0.25g

c = specific heat of calorimeter = 4.13 kJ/°C

ΔT = change in temperature = 26.43°C - 24°C = 2.43°C

Putting all these values in the above equation, we get

Q = - (0.25 × 4.13 × 2.43) = - 2.5089 kJ

Hence, - 2.5089 kJ heat is released.

To know more about released heat, visit the below link:

brainly.com/question/13439286