To raise the temperature of 5 kg of water from 20 0C to 30 0C, a 2-kg iron bar is heated and then dropped into the water. What should the temperature of the bar be
Heat gained = Heat loss
where
m = mass ( kg ); mass of water = 5kg, mass of iron bar = 2kg
C = Specific heat capacity; SHC of water = 4182 J/kg°C, SHC of Iron = 462 J/kg°C
Δθ = Temperature change; temperature change in water = 10°C, temperature change in iron bar = °C
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