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Chemistry · THERMODYNAMICS
हिन्दीRefer to the bomb calorimeter apparatus shown in the figure used for combustion reactions. Under what operational condition does this calorimetric measurement proceed, and which thermodynamic quantity is directly measured?
Correct answer · Option 3
Constant volume; ΔU is directly measured because w = 0 as ΔV = 0
Explanation
The steel bomb is sealed and rigid, meaning \( \Delta V = 0 \), so no mechanical expansion work is done (\( w = 0 \)). Hence, heat absorbed/evolved \( q_v = \Delta U \).
