Chemistry Question 17

Question

Which graph below shows the correct relationship between pressure and volume?

Answer - 

A - Graph D

B - Graph B

C - Graph A ( Incorrect )

D - Graph C

Please explain your answer!

Answer 1

The correct answer is graph D. At a constant temperature, the pressure is inversely proportional to the volume P =k/V. The graph of this kind of relationship is a hyperbola which characteristically looks like graph D.

P = k/V can be rearranged to V = k/P. As P gets very large, the volume begins to approach zero. As P gets very small, V gets very large as seen in the graph.