8000J of heat is given to 200g of copper at 20 degree celcius. what is the final temperature,if the specific heat capacity of copper is 0.4J/g degree celcius.
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Answered by
31
Answer:
120 C
Explanation:
Given :
Heat energy Q = 8000 J
Mass of copper m = 200 g
Specific heat capacity of copper ( c ) = 0.4 J / g C
Initial temperature T₀ = 20 C
We have to find final temperature = T
We know :
Q = m c Δ T
= > 8000 = 200 × 0.4 × ( T - 20 )
= > 40 = 0.4 × ( T - 20 )
= > T - 20 = 40 / 0.4
= > T - 20 = 100
= > T = 120 C
Therefore , final temperature is 120 C.
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