A piece of brass is held in the flame of a Bunsen burner for several minutes

PHYSICS · Subjective · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

A piece of brass is held in the flame of a Bunsen burner for several minutes. The brass is then quickly transferred into an aluminium calorimeter containing 200.00 g200.00\,\text{g} of water. Determine the temperature of the Bunsen flame from the following data.
QuantityValue
m(water)m(\text{water})200.00 g200.00\,\text{g}
m(brass)m(\text{brass})212.10 g212.10\,\text{g}
m(aluminium calorimeter)m(\text{aluminium calorimeter})80.00 g80.00\,\text{g}
c(brass)c(\text{brass})0.400 J g−1K−10.400\,\text{J g}^{-1}\text{K}^{-1}
c(Al)c(\text{Al})0.900 J g−1K−10.900\,\text{J g}^{-1}\text{K}^{-1}
Initial temperature of water24.5∘C24.5^\circ\text{C}
Final temperature of water77.5∘C77.5^\circ\text{C}

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