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Vinvika [58]
3 years ago
8

A sample of copper absorbs 43.6 kJ of heat, resulting in a temperature rise of 75.0°C, determine the mass (in kg) of the copper

sample if the specific heat capacity of copper is 0.385 J/g°C.
Chemistry
1 answer:
Svetllana [295]3 years ago
5 0

Answer:

m=1510gCu=1.51kgCu

Explanation:

Hello,

In this case, considering that the heat due to a change in temperature is given by:

Q=mCp\Delta T

Whereas Q accounts for the heat, m for the mass, Cp for the heat capacity and ΔT the change in the temperature, therefore, the mass turns out:

m=\frac{Q}{Cp\Delta T}=\frac{43.6kJ}{75.0^oC*0.385J/gCu^oC}*\frac{1000J}{1kJ}\\m=1510gCu=1.51kgCu

Best regards.

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