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Two bars of identical mass are at 30 °C. One is made from glass and the other from another substance.?
The specific heat capacity of glass is 840 J/(kg · C°).
When identical amounts of heat are supplied to each, the glass bar reaches a temperature of 95 °C, while the other bar reaches 297.0 °C.
What is the specific heat capacity of the other substance? (Please show how you got the answer, thank you!)
1 Answer
- Some BodyLv 73 years ago
Equation for heat is:
q = mCΔT
Equal amounts of heat are applied to both bars:
q₁ = q₂
m₁ C₁ ΔT₁ = m₂ C₂ ΔT₂
Since m₁ = m₂:
C₁ ΔT₁ = C₂ ΔT₂
Substitute knowns:
(840) (95) = C₂ (297)
C₂ = 269 J/(kg · C°)
