How Are Internal Energy, Heat, and Work Related in Ideal Gases?

[Punkyc7]

Can some one check my work, I'm not sure if I am understanding how internal energy heat and work are related.

Work is defined to be positive if the system does work on the environment.

Q=$\Delta U$ +W

I am showing if the process is positive, negative or 0.

Also this is suppose to be an ideal gas

 

[Andrew Mason]

Can some one check my work, I'm not sure if I am understanding how internal energy heat and work are related.

Work is defined to be positive if the system does work on the environment.

Q=$\Delta U$ +W

I am showing if the process is positive, negative or 0.

Also this is suppose to be an ideal gas

Your answers are correct. What kind of a cycle is it?

AM