Understanding Equation Form

strokebow

Hi,

Example:

Maxwell Relation (thermoD)...

([itex]\frac{∂μ}{∂T}[/itex])[itex]_{p,n}[/itex] = - ([itex]\frac{∂S}{∂n}[/itex])[itex]_{T,p}[/itex]

what does it mean having those subscript variables outside of the brackets.

thanks

mfb

They are kept constant in the process. For example, the left side is the change of µ if you change T, but keep p and n constant.

*Studiot*

post#2 of http://www.physicsforums.com/showthread.php?t=666011

gives an example of the use of this for deriving one of Maxwells relations

Have you studied partial differentiation?

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strokebow	Understanding Equation Form Tweet Hi, Example: Maxwell Relation (thermoD)... ([itex]\frac{∂μ}{∂T}[/itex])[itex]_{p,n}[/itex] = - ([itex]\frac{∂S}{∂n}[/itex])[itex]_{T,p}[/itex] what does it mean having those subscript variables outside of the brackets. thanks

mfb Mentor	They are kept constant in the process. For example, the left side is the change of µ if you change T, but keep p and n constant.

Studiot	post#2 of http://www.physicsforums.com/showthread.php?t=666011 gives an example of the use of this for deriving one of Maxwells relations Have you studied partial differentiation?