The internal energy change when a system goes | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Internal energy $(U)$ is a state function.$A$ state function depends only on the initial and final states of the system,not on the path taken.For

Vedclass · Accepted Answer

$Zero$

Vedclass · Answer

(D) Internal energy $(U)$ is a state function.$A$ state function depends only on the initial and final states of the system,not on the path taken.For any cyclic process,where the system returns to its initial state,the total change in the state function is always zero.Since the system starts at state $A$,goes to state $B$,and returns to state $A$,the net change in internal energy $\Delta U_{net} = U_{final} - U_{initial} = U_A - U_A = 0$.

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?

Similar Questions

$1 \ mol$ of an ideal gas is allowed to expand isothermally and reversibly from $1 \ L$ to $5 \ L$ at $300 \ K$. The change in enthalpy (in $kJ$) is $(R = 8.3 \ J \ K^{-1} \ mol^{-1})$.

What is a system? Explain the types of systems.

For an endothermic process,$\Delta H$ will be ...... .

Identify the correct equation relating $\Delta H$,$\Delta U$,and $\Delta T$ for $1 \text{ mole}$ of an ideal gas from the following $(R = \text{gas constant})$:

$A$ well-stoppered thermos flask contains some ice cubes. This is an example of a

Vedclass Test Series

Exam Paper Generator

Online Exam Module