# Question a07e2

Apr 30, 2015

You can't convert Joules per gram Celsius to Joules per mole, but you can convert Joules per gram Celsius to Joules per mole Celsius.

Specific heat is usually measured in $\text{J/g" ^@"C}$ because it expresses the energy needed to increase the temperature of 1 gram of a substance by 1 degree Celsius.

You can convert specific heat to molar specific heat by using the molar mass of the substance you're dealing with

${M}_{M} = \frac{m}{n} = \text{grams"/"mole}$

$\text{molar specific heat" = "specific heat" * "molar mass}$

"J"/(cancel("g") ^@"C") * cancel("g")/"mole" = "J"/("mole"^@"C")#

Molar specific heat will express the heat needed to raise the temperature of 1 mole of a substance by 1 degree Celsius.