# Specific heat - calorimetry?

Specific heat - calorimetry??

Help from brainy chem person

How do determine the heat capacity of a calorimeter when,

You burn a 100mg of napthalene in it and it's temperature rises by 3.5 degrees C ?

the molar mass of napthalene is 128.18g/mol

Dont i need the specific heat of napthalene?

callisto

Gokul43201
Staff Emeritus
Gold Member
No, you don't need the specific heat of naphthalene, because once you burn it, it's not naphthalene anymore.

Write and balance the reaction for the combustion of naphthalene. You can then either look up the heat of combustion (or get this from the calorific value of naphthalene) or you can calculate it from the various enthalpies of formation.

Then you can assume that this heat is absorbed entirely by the calorimeter.

GCT
$$q_{reaction)=q_{air}+q_{cal}$$, q air corresponds to your measured temperature change, just an example.