Question

The specific heat of a substance is 0.990J/g. What is the value in kcal/mg?

Answer 1

Conversion factors are defined as the ratio that shows the relationship between two units.

Here, the specific heat = 0.990 J/g

Joule is the unit of energy and g is the unit of mass.

1 Joule = 0.000239006 kilocalorie and 1 g = 1000 mg

Now, 1 J/g is equal to
`2.39006 * 10^(-7)`

Therefore, 0.990 J/g is equal to (
`2.39006 * 10^(-7)* 0.990`) kcal/mg

=
`2.3661594 * 10^(-7)` kcal/mg

Hence, 0.0990 J/g is equal to
`2.3661594 * 10^(-7)` kcal/mg