Heat Capacity Calculation in Bomb Calorimetry Experiment

How is the heat capacity of the bomb (C_bomb) calculated in a bomb calorimetry experiment? The heat capacity of the bomb (C_bomb) is calculated by determining the heat absorbed by the bomb during the experiment and the temperature increase observed. To find the heat absorbed by the bomb, we subtract the heat absorbed by the wire from the total heat released during the combustion of the substance being tested. The formula used is q_bomb = C_bomb * ΔT, where q_bomb is the heat absorbed by the bomb, C_bomb is the heat capacity of the bomb, and ΔT is the temperature increase.

Calculating Heat Capacity of the Bomb

Heat Absorbed by the Bomb: By subtracting the heat absorbed by the wire from the total heat released during combustion, we can find the heat absorbed by the bomb.

Heat Absorbed by the Wire: The heat absorbed by the wire is determined using the formula q_wire = C_wire * Δm, where C_wire is the specific heat factor of the wire and Δm is the change in mass of the wire.

Total Heat Released during Combustion: The heat released during combustion can be calculated using the formula q_benzoic acid = C_combustion * m_benzoic acid, where C_combustion is the specific heat of combustion and m_benzoic acid is the mass of the substance being combusted.

By dividing the heat absorbed by the bomb by the temperature increase ΔT, we can determine the heat capacity of the bomb (C_bomb).

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