b) The data below was obtained from an experiment. Pressure(atm) Volumes(cm3) 1/p 1/v 1.0 10.00 2.0 5.00 2.5 4.00 4.0 2.50 7.5 1.33 10.0 1.00 …………(6) (c) From the above data, plot a graph of (i) P against V ……………(4) (ii) P against 1/v. ……………(4) (iii) Draw appropriate conclusion.
(i) P against V:
The graph of P against V is a straight line that decreases as V increases.
(ii) P against 1/v:
The graph of P against 1/v is a straight line that increases as 1/v increases.
(iii) Conclusion:
The data shows a direct relationship between pressure and volume, and an inverse relationship between pressure and 1/v. This is consistent with the ideal gas law, which states that pressure and volume are directly proportional, and pressure and 1/v are inversely proportional.