One mole of an ideal monoatomic gas undergoes two reversible processes $\left(A\to BandB\to C\right)$ as shown in the given figure:

 $A\to B$ is an adiabatic process. If  the total heat absorbed in the entire process $\left(A\to BandB\to C\right)$ is $R{T}_2$ ln 10, the value of   $2 \log V_3$  is
[Use, molar heat capacity of the gas at constant pressure, $C_{p,m}$ = $\frac{5}{2}$ R]