Question

Which curve does not represent Boyle’s law
Ñõ Spàm​

Answer 1

Answer:

The graph C does not represent Boyle's law as it is a straight line however the curve of P vs V for Boyle's law is an exponential curve.

The graph D indicates the equation P=−V+constant whereas the Boyles law is represented by the equation PV= constant.

Explanation:

graph C does not represent boyle's law.

hope it is clear☺

Answer 2

According to Boyle's Law, the absolute pressure exerted by a given mass of an ideal gas is inversely proportional to the volume it occupies if the temperature and amount of gas remain unchanged within a closed system, or:

                           Pressure ∝ $\frac{1}{Volume}$ or                  (1)

                             PV=constant.                           (2)

Using this definition and formula, let us analyse all the graphs.

A.

• Graph A is correct representation of the inverse relation of pressure and volume of a gas.
• As pressure decreases, volume increases, so it represents Boyle's Law.

B. Graph B is also correct.

• Consider the relation PV = constant. Taking log on both sides:

                     ⇒  log(PV) = log(constant)

                    ⇒ log P + log V = 0                (log(xy) = log x + log y)

                    ⇒ log P = -log V

• If we compare log P = - log V with the straight-line equation y =mx + c, we can see graph B represents it, hence it represents Boyle's Law.

C. This graph is incorrect.

• If we make an equation for graph C it will be

            P= -V  + c

which is not representative of Boyle's Law.

• Hence, it does not represent Boyle's Law.

D. This graph is correct.

• Since PV = constant, therefore PV vs P graph is a line parallel to x-axis as the vale of PV will not change even if P changes.
• Hence it represents Boyle's Law.

Therefore, curve C does not represent Boyle's Law.