Anum is a good organizational citizen and goes above and beyond her job description, but she is not compensated for it. after continuing to work on tasks without compensation, which kind of injustice is she likely to feel

Anum likely to feel "distributive justice".

Distributive justice, in social psychology is characterized as seen reasonableness of how rewards and expenses are shared by group members. For instance, when laborers of a similar activity are paid distinctive pay rates, assemble individuals may feel that distributive justice has not happened.