# The amount of heat needed to raise the temperature of 25 g or a substance by 15°C is 915 J. What is the specific heat of the substance?

May 7, 2016

s=2.44J/(g*""^@C)

#### Explanation:

The amount of heat ($q$) absorbed by the system in this case could be expressed as follows:

$q = m \times s \times \Delta T$

Where, $m$ is the mass of the substance,

$s$ is the specific heat capacity of the substance,

and $\Delta T$ is the change on temperature during the heating process.

Thus, the specific heat capacity could be found by:

s=q/(mxxDeltaT)=(915J)/(25gxx15^@C)=2.44J/(g*""^@C)

Here is a video that explains this topic in more details:
Thermochemistry | Enthalpy and Calorimetry.