Question

find (dP)/(dV) at constant k

Answer 1

do you have an equation?

Answer 2

Boyle's law states that when a sample of gas is compressed at a constant temp. the product of the pressure (P) and volume (V) equals a constant (k): PV=k
Another way to write this is P=k/V
Suppose the Volume is changing. Find dP/dV

Answer 3

it looks hard but remember that d(1/x)/dx = -1*(1/x^2)

Answer 4

and the right hand side of dP/dV =d (k/V)/dV is just a constant times (1/V)