Editing First law of thermodynamics
Jump to navigation
Jump to search
The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then publish the changes below to finish undoing the edit.
Latest revision | Your text | ||
Line 5: | Line 5: | ||
Where ''U'' is the [[internal energy]] of the system, i.e. | Where ''U'' is the [[internal energy]] of the system, i.e. | ||
ignoring the external energy of the system, for example | ignoring the external energy of the system, for example | ||
motion of the | motion of the center of mass of the system, or the presence | ||
of an external field. ''Q'' is the net [[heat]] entering the | of an external field. ''Q'' is the net [[heat]] entering the | ||
system and ''W'' is the [[work]] done upon the system | system and ''W'' is the [[work]] done upon the system. | ||
For reversible changes | For reversible changes | ||
:<math>\left.dW\right.=-p~dV </math> | :<math>\left.dW\right.=-p~dV </math> | ||
Line 30: | Line 30: | ||
==References== | ==References== | ||
#[http://dx.doi.org/10.1098/rstl.1850.0004 James Prescott Joule "On the Mechanical Equivalent of Heat", Philosophical Transactions of the Royal Society of London '''140''' pp. 61-82 (1850)] | #[http://dx.doi.org/10.1098/rstl.1850.0004 James Prescott Joule "On the Mechanical Equivalent of Heat", Philosophical Transactions of the Royal Society of London '''140''' pp. 61-82 (1850)] | ||
[[Category: Classical thermodynamics]] | [[Category: Classical thermodynamics]] |