MCQ
We consider a thermodynamic system. If `Delta"U"` represents the increase in its internal energy and W the work done by the system, which of the following statements is true?
- A`Delta"U"`=-W in an isothermal process
- B`Delta"U"`= W in an adiabatic process
- C`Delta"U"`= W in an isothermal process
- ✓`Delta"U"` =-W in an adiabatic process

