Complete combustion of a 0.350 g sample of a compound in a bomb calorimeter releases 14.0 kJ of heat. The bomb calorimeter has a mass of 1.20 kg and a specific heat of 3.55 J/(gi°C). If the initial temperature of the calorimeter is 22.5°C, what is its final temperature?
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Hello friend,
Given -
Heat released by compound = 1.4kJ =14000J
Mass of calorimter = 1.2 kg = 1200 g
Specific heat = 3.55 J/(gi°C)
Initial temperature = 22.5°C
Final temptature = ?
Solution =
Heat released by compound = Heat gained by calorimeter
Heat energy = specific heat × mass of calorimeter × temperature change
14000=3.55×1200× temperature change
Temperature change = 14000/(3.55×1200)
Temperature change = 3.27
Final temperature = initial temperature + temperature change
Final temperature = 22.5+3.27 = 25.77℃
Hence, final temperature of calorimeter will be 25.77℃.
Best luck for exams buddy…
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