Posted by tony on .
Solve the problem. The volume V of a gas varies inversely as the pressure P on it. The volume of a gas is 240 cm3 under a pressure of 23 kg/cm2 What will be its volume under a pressure of 30 kg/cm2?

college alegebra 
drwls,
In this situation, because of the inverse proportionality,
P1/P2 = V2/V1
1 and 2 denote the two different conditions.
23/30 = V2/240
Solve for V2, the volume at P2 = 30 
college alegebra 
tony,
aaaahhhh, now i get it

college alegebra 
tony,
however, the options are:
184, 166, 313, or 297 
college alegebra 
tony,
I got 313, is this correct?
(240*30)/23=313 
college alegebra 
drwls,
No, it is 184. You incorrectly rearranged the equation I wrote.
The volume has to decrease when you increase the pressure.