Complete combustion of a 0.600-g sample of a compound in a bomb calorimeter releases 24.0 kJ of heat. The bomb calorimeter has a mass of 1.30 kg and a specific heat of 3.41 J / (gi°C). If the initial temperature of the calorimeter is 25.5°C, what is its final temperature?

A. 30.9°C

B. 34.5°C

C. 44.0°C

D. 51.5°C

Question

Savanah

Chemistry

28 March, 17:39

Complete combustion of a 0.600-g sample of a compound in a bomb calorimeter releases 24.0 kJ of heat. The bomb calorimeter has a mass of 1.30 kg and a specific heat of 3.41 J / (gi°C). If the initial temperature of the calorimeter is 25.5°C, what is its final temperature?

A. 30.9°C

B. 34.5°C

C. 44.0°C

D. 51.5°C

+3

Answers (1)

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Ivory · Answer 1

dа ta:

Heat = 24 KJ = 24,000 J

mass = 1.3kg = 1300 g

Cs = 3.41 J / (g °C)

Ti = 25.5 °C

Question: Tf

Formula: Heat = mCsΔT = >

ΔT = Heat / (mCs) = 24000J/[1300g*3.41J / (g°C) ] = 5.4 °C

ΔT = Tf - Ti = > Tf = ΔT + Ti = 25.5°C + 5.4°C = 30.9°C

Answer: 30.9°C