A system goes from A to B via two processes I and II as shown in figure. If Δ U 1 and Δ U 2 are the changes in internal energies in the processes I and II respectively, then the relation between Δ U 1 and Δ U 2 is

Question

A system goes from A to B via two processes I and II as shown in figure. If Δ U 1 and Δ U 2 are the changes in internal energies in the processes I and II respectively, then the relation between Δ U 1 and Δ U 2 is (A) Δ U 1=Δ U 2 (B) Δ U 2<Δ U 1 (C) Δ U 2>Δ U 1 (D) undetermined

Tardigrade Admin · Accepted Answer

Internal energy is a state function, i.e. it depends upon initial and final state. Hence, it does not depend upon the path chosen. Since, initial and final states are same, so Δ U1=Δ U2

Q. A system goes from $A$ to $B$ via two processes I and II as shown in figure. If $Δ U_{1}$ and $Δ U_{2}$ are the changes in internal energies in the processes I and II respectively, then the relation between $Δ U_{1}$ and $Δ U_{2}$ is

$Δ U_{1} = Δ U_{2}$

$Δ U_{2} < Δ U_{1}$

$Δ U_{2} > Δ U_{1}$

undetermined

Internal energy is a state function, i.e. it depends upon initial and final state.
Hence, it does not depend upon the path chosen.
Since, initial and final states are same, so $Δ U_{1} = Δ U_{2}$

Q. A system goes from A to B via two processes I and II as shown in figure. If ΔU1​ and ΔU2​ are the changes in internal energies in the processes I and II respectively, then the relation between ΔU1​ and ΔU2​ is

ΔU1​=ΔU2​

ΔU2​<ΔU1​

ΔU2​>ΔU1​