In a cyclic process shown in the figure an ideal gas is adiabatically taken firm B to A, the work done on the gas during the process B ⟶ A is 30 J, when the gas is taken from A → B the heat absorbed by the gas is 20 J. The change in internal energy of the gas in the process A ⟶ B is
![](https://search-static.byjusweb.com/question-images/byjus/tnl-content-images/moodle-migration/35427_752d73f3e9e6a88d2c83750338c709abeb4fc6be_1.PNG)