You pour 100 g of boiling water into a 3 kg cast-iron pot at room temperature...
You pour 100 g of boiling water into a 3 kg cast-iron pot at room temperature (20°?). What will the water cool to?
Homework Answers
using principle of calorimetry
heat released by water = heat absorbed by iron cast
mw Cw (100 - T) = mi Ci ( T - 20)
0.100 * 4186* ( 100 - T) = 3 * 448 ( T - 20)
31.146 - 0.311 T = T - 20
T = 39
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