A Gas Expands as Shown in the Graph

A gas expands as shown in the graph. If the heat taken in during this process is 1.02 × 10⁶ J and 1 atm = 1.01 × 10⁵ N/m², the change in internal energy of the gas (in J) is how much? ​ ​

A) −2.42 × 10⁶
B) −1.40 × 10⁶
C) −1.02 × 10⁶
D) 1.02 × 10⁶
E) 1.40 × 10⁶