Back to THERMODYNAMICS
NEET UG CHEMISTRY MCQ: THERMODYNAMICS
1
Medium
1 of 1
Understanding
+4 | -1
The internal energy change when a system goes from state A to B is 40 kJ/mol. If the system goes from A to B by a reversible path and returns to state A by an irreversible path, what would be the net change in internal energy?
View answer and explanation
Correct option: D
Zero
Option D (Zero) is correct because internal energy is a state function, meaning the change in internal energy depends only on the initial and final states, not the path taken. Since the system returns to its initial state, the net change in internal energy is zero.
More Questions from THERMODYNAMICS
Practice All Chapter MCQs →
The internal energy of one mole of a gas is:
An ideal gas is allowed to expand both reversibly and irreversibly in an isolated system. If is the initial temperature and is the final temperature, which of the following statements is correct?
For which of the process, ∆S is negative?
The work done by a weightless piston in causing an expansion ∆V (at constant temperature), when the opposing pressure, P is variable, is given by:
Assertion :- At constant pressure of the change work done is negative.
Reason :- During phase transition work done is always negative. For the reaction, at . Hence, is
Reason :- During phase transition work done is always negative. For the reaction, at . Hence, is