Question

How does molar heat differ from specific heat?

Answer 1

The differnce is in the amount of matter.

Specific heat is defined as the heat needed to raise the temperature of 1 gram of the substance by one degree (K or C).

Molar heat is defined as the heat needed to raise the temperature of 1 Mole of the substance by one degree (K or C).

Example:
Iron has a specific heat of `0.46 J//g*K`. This means it takes `0.46 J` to raise the temperature of 1 gram by 1 degree.
Since the molar mass of iron is 56 g/Mole, the molar heat will be `56*0.46=25.76 J//Mol*K`