Question

What would be the final temperature of a 73.174g sample

Answer 1

The final temperature is -138 °C.

Explanation:

Using the equation of specific heat

$Q = m*c* del T$

We can easily find the final temperature of a 73.174 g of copper sample. As we know that specific heat is the amount of energy required to raise the temperature of the object to 1°C.

The specific heat of copper is known as 0.387 J/g°C and the initial temperature is said as 102 °C . The mass is given as 73.174 g. The heat released is 6800 J.

Since the heat is released the Q value will be negative.

$-6800=0.387*73.174*(T_{final}-102)$

$T_{final}-102=\frac{-6800}{0.387*73.174} =-240$

$T_{final} = -240+102=-138$

Thus, the final temperature is -138 °C.