## q rev

Emily Lo 1J
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Joined: Thu Sep 19, 2019 12:16 am

### q rev

In the equation delta S equals q rev over temperature, what exactly is q rev?

Tiffany_Chen 2K
Posts: 106
Joined: Fri Aug 30, 2019 12:15 am

### Re: q rev

Heat for a reversible equation is qrev. Reversible equations are when the equation is at equilibrium.

rabiasumar2E
Posts: 108
Joined: Thu Jul 11, 2019 12:15 am

### Re: q rev

'Rev' just means reversible so q rev is used when calculating the heat for a reversible reaction.

faithkim1L
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Joined: Fri Aug 09, 2019 12:17 am

### Re: q rev

When Lavelle uses Rev, it means that the reaction is reversible.

Kassidy Ford 1I
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Been upvoted: 1 time

### Re: q rev

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.

chari_maya 3B
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Joined: Sat Sep 07, 2019 12:18 am

### Re: q rev

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?

Anna Chen 1K
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Joined: Thu Jul 25, 2019 12:18 am

### Re: q rev

q is heat while rev refers to a reversible reaction so q rev is used for calculating heat for a reversible reaction.

Trent Yamamoto 2J
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Joined: Sat Aug 17, 2019 12:18 am

### Re: q rev

Q is the heat released/absorbed and rev refers to the fact that the reaction is reversible

JesseAuLec1Dis1G
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Joined: Mon Jun 17, 2019 7:23 am

### Re: q rev

the subscript rev just signifies that the reaction is reversible.

Anushka Chauhan2B
Posts: 51
Joined: Sat Aug 24, 2019 12:16 am

### Re: q rev

heat for the reversible reaction