Question

If 747 joules of energy is added to a sample of aluminum (specific heat capacity = 0.899 J/g*C) and the temperature goes up from 105.0*C to 121.0*C, what is the mass of the aluminum sample?

Answer 1

Answer:

m = 51.93 grams

Explanation:

Given that,

Energy added, Q = 747 joules

The specific heat capacity of Aluminium, c = 0.899 J/g°C

The temperature goes from 105.0°C to 121.0°C.

Let the mass of the aluminum sample is m. We know that, the heat added to the system is given by :

$Q=mc\Delta T\\\\m=\dfrac{Q}{c\Delta T}\\\\m=\dfrac{747}{0.899 \times (121-105)}\\\\m=51.93\ g$

So, the mass of the sample is 51.93 grams.