# find an expression for W

• Jan 9th 2011, 04:40 AM
wilko
find an expression for W
$W=\int_{V_{1}}^{V_{2}}{3P}^{\frac{1}{2}}V^{2}\; dV$

If $PV\; =\; \mbox{C} (constant)$

Find an expression for W.
• Jan 9th 2011, 04:48 AM
alexmahone
Quote:

Originally Posted by wilko
$W=\int_{V_{1}}^{V_{2}}{3P}^{\frac{1}{2}}V^{2}\; dV$

If $PV\; =\; \mbox{C} (constant)$

Find an expression for W.

Substitute $P=\frac{C}{V}$ in the integral.