One way to cool a gas is to let it expand. When a certain gas under a pressure of 5.00 x 10^6 Pa at 25.°C is allowed to expand to 3 times its original volume, its final pressure is 1.07 x 10^6 Pa. What is its final temperature:

The final temperature is T2= 5.35°C

Explanation:

Apply the Gay-lussacs's law we have

P1, initial pressure= 5.00 x 10^6 Pa

T1, initiation temperature= 25.°C

P2, final pressure= 1.07 x 10^6 Pa

T2, final temperature= ?

Cross multiplying and making T2 subject of formula we have

T2= 5.35°C

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this