Question

A sample of glass that has a mass of 9.3 g gives off 87 J of heat. If the temperature of the sample changes by 12.7°C during this change, what is the specific heat of the glass? NEED ASAP

Answer 1

The specific heat of the glass = 0.7366 J/g°C

Step-by-step explanation

Given:

Mass of the glass sample, m = 9.3 g

Quantity of heat given off, Q = 87 J

Change in temperature, ΔT = 12.7 °C

What to find:

The specific heat, c of the glass.

Step-by-step solution:

The specific heat, c of the glass can be calculated using the given formula below.

`\begin{gathered} Q=mc\Delta T \\ \\ \Rightarrow c=(Q)/(m\Delta T) \end{gathered}`

Putting the values of the given parameters into the formula, we have;

`c=(87J)/(9.3g*12.7°C)=\frac{87\text{ }J}{118.11\text{ }g°C}=0.7366\text{ }J\text{/}g°C`

Therefore, the specific heat of the glass is 0.7366 J/g°C