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Heat of a Reaction
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Topic: Heat of a Reaction (Read 2834 times)
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LHM
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Heat of a Reaction
«
on:
September 02, 2010, 11:17:55 PM »
The heat of a reaction is measured in a bomb calorimeter. This heat is equal to which thermodynamic quantity?
A) :delta: E
B) :delta: G
C) :delta: H
D) :delta: S
Why is the answer A instead of C?
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ContinuousProcess
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Re: Heat of a Reaction
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Reply #1 on:
September 03, 2010, 12:45:45 AM »
A bomb calorimeter is supposed to be an isolated system.
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Borek
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Re: Heat of a Reaction
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Reply #2 on:
September 03, 2010, 03:31:27 AM »
Does the volume change?
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ChemBuddy
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LHM
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Re: Heat of a Reaction
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Reply #3 on:
September 04, 2010, 04:15:22 PM »
Quote from: Borek on September 03, 2010, 03:31:27 AM
Does the volume change?
No? Doesn't volume stay constant in a bomb calorimeter? So P :delta: V =0
And since H=U+P :delta: V, H=U?
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Heat of a Reaction