Question

Which of the following graphs is true for a given mass of a gas at constant pressure?

• A.

  

• B.

  

• C.

  

• D.

  

Answer 1

The correct option is C

Option (C) is the correct option.

Explanation for the correct option(C):

• According to Charles' law at constant pressure, the volume of a given mass of gas inclines or declines by ($\frac{1}{273}$) of its volume 0.
• Thus volume is directly proportional to its absolute temperature.
• Hence graph (C) is the correct answer which shows the given mass of a gas at constant pressure.

Explanation for the incorrect option(A):

• Graph (C) is the correct answer which shows the given mass of a gas at constant pressure.
• Hence graph (A) is incorrect.

Explanation for the incorrect option(B):

• Graph (C) is the correct answer which shows the given mass of a gas at constant pressure.
• Hence graph (B) is incorrect.

Explanation for the incorrect option(D):

• Graph (C) is the correct answer which shows the given mass of a gas at constant pressure.
• Hence graph (D) is incorrect.

Hence Option (C) is the correct option.