Question 28

Question

28. The pressure and absolute temperature of the gas sample whose volume is fixed are related with

one or more of the following

( 1)\frac{p_{1}}{r_{1}}=\frac{p_{2}}{r_{2}} (b)

() \frac{p_{2}}{r_{1}}\approx\frac{p_{1}}{r_{2}} ) \frac{p_{1}}{T_{2}}=\frac{p_{2}}{r_{1}}

\frac{p_{1}}{T_{1}}=\frac{T_{2}}{p_{2}}

Answer 1

The correct equation relate pressure and absolute temperature when volume is fixed is:

(1) $\frac{p_{1}}{T_{1}}=\frac{p_{2}}{T_{2}}$

This equation is known as the Gay-Lussac's Law or the Pressure-Temperature Law. It states that the ratio of the initial pressure and temperature is equal to the ratio of the final pressure and temperature for a gas sample with fixed volume.