qrev vs q
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Re: qrev vs q
I'm not completely sure, but q is just heat, and qrev is just a specific notation referring to the heat of a reversible process.
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Re: qrev vs q
Hi! I believe that it being a reversible process means that it is behaving as an ideal gas. I think that the (rev) is just specifying that as a condition in the formula.
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Re: qrev vs q
The qrev just refers to the way that specific equation is derived. In general, I'm pretty sure the given ΔH (or ΔH that we might have to calculate) is synonymous the qrev that we use to find ΔS.
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Re: qrev vs q
q and qrev are both just heat terms, but qrev refers to heat from a reversible expansion. When systems are approximated as reversible (like when we're trying to calculate the maximum work), we use qrev.
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Re: qrev vs q
qrev is heat from a reversible expansion/compression, but q is just a heat term. Make sure that you use qrev when solving for entropy changes.
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Re: qrev vs q
Christine Ma 3L wrote:q and qrev are both just heat terms, but qrev refers to heat from a reversible expansion. When systems are approximated as reversible (like when we're trying to calculate the maximum work), we use qrev.
Thanks for this! I was still a little confused from other replies ;-;
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Re: qrev vs q
Qrev is the Q of the reverse reaction, which is used for entropy. They're both heat transfer values.
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Re: qrev vs q
The difference between qrev versus regular q is the qrev is significant in identifying the heat of the reversible reaction. On the other hand, q is representative of the overall heat in the reaction.
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Re: qrev vs q
There isn't really a notable difference, just that qrev is used to specify that the heat value is taken from a reversible system.
Re: qrev vs q
If q is not reversible then there must have been heating lost during the transfer of energy from an external source to the subject gas. Ideal gases retain all heat transferred to them, apparently.
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Re: qrev vs q
q represents the overall heat while qrev represents the heat from a reversible expansion.
Re: qrev vs q
qrev is the heat of reversible expansion which can be useful for approximations whereas q is just the heat of expansion.
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Re: qrev vs q
q is the heat of the forward reaction and qrev is the heat of the reverse reaction. qrev is helpful in determining the heat of the reversible reaction at hand, usually associated with S and also the signs of the heat show if the reaction is reversible or not.
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Re: qrev vs q
Hi! Like many others have stated, q represents just heat while qrev represents the heat of a reversible reaction.
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