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0.005 kg of copper was heated from 20°C to 80°C. How much energy was used to eat

Cu? (Specific heat capacity of Cu is 385 J/kg °C)

1 Answer

4 votes

Answer:

115.5 Joules

Step-by-step explanation:

We are given;

  • Mass of copper as 0.005 kg
  • Initial temperature as 20° C
  • Final temperature as 80° C
  • specific heat of copper as 385 J/kg°C

We are required to calculate the quantity of heat energy used

  • We know that, Q = m × c × ΔT

Change in temperature, ΔT = 80° C- 20° C

= 60 °C

Therefore;

Quantity of heat, Q = 0.005 kg × 385 J/kg/°C × 60° C

= 115.5 Joules

Thus, the heat energy used to heat copper is 115.5 Joules

User Rmehlinger
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