Q46 / 57 · KVPY 2019 (SA) · Physics
Which one of the following schematic graphs best represents the variation of (in Joules) versus $T$ (in Kelvin) of one mole of an ideal gas? (The dotted line represents )
- Correct answerA

- B

- C

- D

Solution
From gas equation,
Here,
Substituting the value of in Eq. (i), we get
Clearly, slope of versus T line is 8.3 , which is greater than one. Hence, following graph is correct.

Hence, the correct answer is option: 'A'.