if work is done on a system during an adiabatic process, does the internal energy of the system increase?

Question

(ie. does the system heat up?)
a. Yes, work done On a system adds energy to it, and if that energu is not lost, it goes directly into the system's internal energy.
b. No. as an example, enough work done to compress a gas will turn it into a frozen solid.
c. No. work dones on a system is equal to negative work done by the system, therefore energy is removed from the system.
d. yes. even though the work done removes heat from the system, the amount o heat absorbed form outside of the system wil compensate.


can you help me with this physic question? thanks a lot!!!!

(ie. does the system heat up?)
a. Yes, work done On a system adds energy to it, and if that energu is not lost, it goes directly into the system's internal energy.
b. No. as an example, enough work done to compress a gas will turn it into a frozen solid.
c. No. work dones on a system is equal to negative work done by the system, therefore energy is removed from the system.
d. yes. even though the work done removes heat from the system, the amount o heat absorbed form outside of the system wil compensate.


can you help me with this physic question? thanks a lot!!!!


wah...so fast for answering my question!!!
really thanks to all of you!
btw, the answer should be (a) right?

Answer 1

"Adiabatic" means that no heat passes into the system. Since change in heat=change in internal energy+work done by system
and the work is done ON the system (making the work done BY the system less than zero), the change in internal energy must be postitve. So yes, the internal energy will increase.

Answer 2

One must realize that when we say work is done on system it implies energy has been added to the system irrespective of the type of process. If process is adiabatic energy cannot be shared with the surrounding as a result of temperature difference So energy cannot go out as heat Hence the internal energy would increase.

Answer 3

Adiabatic Work