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q rev

Posted: Sat Feb 08, 2020 9:48 pm
by Emily Lo 1J
In the equation delta S equals q rev over temperature, what exactly is q rev?

Re: q rev

Posted: Sat Feb 08, 2020 10:37 pm
by Tiffany_Chen 2K
Heat for a reversible equation is qrev. Reversible equations are when the equation is at equilibrium.

Re: q rev

Posted: Sat Feb 08, 2020 10:53 pm
by rabiasumar2E
'Rev' just means reversible so q rev is used when calculating the heat for a reversible reaction.

Re: q rev

Posted: Sun Feb 09, 2020 12:03 am
by faithkim1L
When Lavelle uses Rev, it means that the reaction is reversible.

Re: q rev

Posted: Sun Feb 09, 2020 11:27 am
by Kassidy Ford 1I
Also notice that this equation can't be used if there is change in V, P, or T, because you have to use one other equations. This also implies reversibility.

Re: q rev

Posted: Sun Feb 09, 2020 10:32 pm
by chari_maya 3B
When using deltaS = qrev/T to derive the equation for entropy under isothermal and isobaric conditions, work is used in replacementf for qrev. Why is this, and why does the equation end up being positive when work is negative?

Re: q rev

Posted: Sun Feb 09, 2020 10:40 pm
by Anna Chen 1K
q is heat while rev refers to a reversible reaction so q rev is used for calculating heat for a reversible reaction.

Re: q rev

Posted: Mon Feb 10, 2020 12:29 pm
by Trent Yamamoto 2J
Q is the heat released/absorbed and rev refers to the fact that the reaction is reversible

Re: q rev

Posted: Mon Feb 10, 2020 1:25 pm
by JesseAuLec1Dis1G
the subscript rev just signifies that the reaction is reversible.

Re: q rev

Posted: Mon Feb 10, 2020 1:54 pm
by Anushka Chauhan2B
heat for the reversible reaction