Question

For the P-V diagram given for an ideal gas, the T-P graph is=?

Answer 1

3)

Explanation:

The curve is an isotherm `PV=" constant"`. So, it must be a horizontal line on a `T-P` diagram. Among the two valid options, 3) is the one that shows that state marked 2 has a lower pressure, as it should.

Answer 2

`(3)`

Explanation:

The ideal gas law is: `PV=nRT` in your exercise is `T=const. rArr PV=const.`
If we write `T=(PV)/n` and consider `PV=const.` we can conclude that `T=const.` So `(1),(2)` can not be the answer.

Look at the `P-V` diagram: `P_1>P_2` the only `T-P` diagram that maintain this feature is `(3)`.