Reducing the volume of a contained gas by one third, while holding temperature constant, causes pressure to

A. be decreased by two thirds.

B. be increased by two thirds.

C. be decreased by one third.

D. be increased by one third

Question

Reducing the volume of a contained gas by one third, while holding temperature constant, causes pressure to



 
A. be decreased by two thirds. 
 
 
B. be increased by two thirds. 
 
 
C. be decreased by one third. 
 
 
D. be increased by one third

photon336 · Answer

Start with $$Pv = nRT$$

photon336 · Answer

You keep the temperature constant, as well as the number of moles so nRT = a constant

photon336 · Answer

$$Pv = k $$

photon336 · Answer

Then you want to know how a change in volume will affect the pressure

photon336 · Answer

$$P _{1}V _{1} = P _{2}V _{2}$$ this is what you get now

anonymous · Answer

yeah......... im not understanding that @Photon336

photon336 · Answer

may have to think about it this way |dw:1438032347186:dw|

which one has the greater volume?