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A sample of copper absorbs 4.31E+1 kJ of heat, resulting in a temperature rise of 6.71E+1 °C. Determine the mass (in kg) of the copper sample if the specific heat capacity of copper is 0.385 J/g°C.

User Tiffiny
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1 Answer

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Answer: 1.67 kg

Step-by-step explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.


Q=m* c* \Delta T

Q = Heat absorbed=
4.31* 10^1kJ =
43100J (1kJ=1000J)

m= mass of substance = ?

c = specific heat capacity =
0.385J/g^0C

Change in temperature ,
\Delta T=T_f-T_i=6.71* 10^1^0C=67.1^0C

Putting in the values, we get:


43100J=m* 0.385J/g^0C* 67.1^0C


m=1670g=1.67kg (1kg=1000g)

Thus the mass (in kg) of the copper sample is 1.67

User Ohjeah
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