Question

Please, help

Answer 1

My logic is \(\dfrac{P_AV_A}{T_A}= \dfrac{P_FV_F}{T_F}\) replace numbers in, I have \(T_F = 1.56T_A\) Which means temperature increases.
The process is adiabatic one which shows Q = 0, and \(\triangle U= W \) . W >0 \(\rightarrow \triangle U >0\) means U increases. Should I check the first option, too? Not sure.

Answer 2

What's U?

Answer 3

Yes check the first option.

Answer 4

what's else?

Answer 5

Nothing more! q cannot provide energy since its zero, it also cannot be greater than W since its zero still!

Answer 6

why do you think Q =0?

Answer 7

The process is adiabatic.

Answer 8

The problem said that it is NOT a diabatic,

Answer 9

oh, my bad. I am sorry, still have another guide, let me post it

Answer 10

No wait did the question say its adiabatic?

Answer 11

So what's the question?

Answer 12

:) I am sorry, I am so tired now. :)

Answer 13

I'd say second one.

Answer 14

me too. I got the second one, consider the first one, (I have a proof of it, too)
Think of the third one, since the volume changes --> work done on gas