1 joule plus minus 1 joule =?

1 joule plus minus 1 joule =?


It means that one joule of heat is absorbed and then one joule of heat is released



-Which is more work, 150 joules or 100 joules?


-150 joules
The sign indicates the work done by the outside world to the system or by the system to the outside world
So the answer is 150 joules