The specific heat of bromine liquid is 0.226 J/g ∙ K. The molar heat capacity (in J/mol-K)of bromine liquid is __________.

Question

Quizplus · Accepted Answer

We can use the equation:

Cp = nCm

where Cp is the molar heat capacity, Cm is the specific heat, and n is the number of moles.

We know that the specific heat for bromine liquid is 0.226 J/g∙K. This means that it takes 0.226 J of energy to raise the temperature of 1 gram of bromine liquid by 1 K.

To find the molar heat capacity, we need to convert the specific heat to J/mol∙K. We can do this by multiplying by the molar mass of bromine, which is 79.904 g/mol.

0.226 J/g∙K x (1 mol/79.904 g) = 2.83 x 10^-3 J/mol∙K

Therefore, the molar heat capacity of bromine liquid is 2.83 x 10^-3 J/mol∙K, which is closest to answer choice B (36.1 J/mol∙K).

The Specific Heat of Bromine Liquid Is 0