An 900-g iron block is heated to 380 ∘C and placed in an insulated container (of negligible heat capacity) containing 36.0 g of water at 20.0 ∘C.
What is the equilibrium temperature of this system? The average specific heat of iron over this temperature range is 560 J/(kg⋅K).
Heat lost by iron = heat gained by water
let T be the final temperature
mironcironTiron = mwatercwaterTwater
0.9 * 560 * ( 380 - T) = 0.036 * 4186 *(T - 20)
191520 - 504 * T = 150.696T - 3013.92
194533.92 = 654.696 T
T = 297.14 oC
OR
T = 570.14 K
An 900-g iron block is heated to 380 ∘C and placed in an insulated container (of...
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