Determining Internal Energy
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Determining Internal Energy
When determining the internal energy accompanying a reaction, why does the second step involve using the equation q=-Ccal*(change in temp) ? I'm just confused as to why there's a negative sign.
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Re: Determining Internal Energy
The negative sign indicates that work is being done by the system, i.e. it is releasing energy.
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Re: Determining Internal Energy
There is a negative sign because this indicates that the system in question is performing work, therefore it is releasing energy; hence the negative sign.
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