Answer to Question #174628 in General Chemistry for Alexes Cena

Question

Copper has a specific heat of 0.382 J/g×°C. The temperature of an unknown mass of copper increases by 4.50°C when it absorbs 3.97 J of heat. What is the mass of the copper?

Answer 1

Given,

Specific heat of copper $c=0.382J/gc^{\circ}$

Increament in temprature $\Delta T=4.5^{\circ}$

Heat absorbs Q=3.97 J

As we know,

$Q=mc\Delta T$

$\Rightarrow 3.97=m\times 0.382\times 4.5\\\Rightarrow m=\dfrac{3.97}{1.719}=2.309g$

Hence The mass of the copper is 2.309g