Question

Absolute values of internal energies ________ calculated.

(a) can be

(b) can not be

(c) may be

(d) may not be

The question was asked in an internship interview.

This question is from Internal Energy topic in chapter Energy Balances of Chemical Process Calculation

Answer 1

Right answer is (a) can be

To explain: Internal energies can be calculated relative to a reference state.