First slide

Questions on calorimetry without phase change

Question

20 g of boiling water is poured into an ice-cold brass vessel (specific heat 0.1 cal/g C⁰) of mass 100 g. The resulting temperature is:

Moderate

A

66.66°C
B

6.66°C
C

0.66°C
D

50°C

Solution

Let resulting temperature be 0 then by principle of calorimetry
$20 \times 1 \times (100 - θ) = 100 \times 0.1 \times (θ - 0) \Rightarrow θ = 66 . 66^{o} C$

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