If three moles of monoatomic gas $\left(\gamma=\frac{5}{3}\right)$ is mixed with two moles of a diatomic gas $\left(\gamma=\frac{7}{5}\right)$, the value of adiabatic exponent $\gamma$ for the mixture is:
  • A$1.75$
  • B$1.40$
  • C$1.52$
  • D$1.35$
JEE MAIN 2024, Diffcult
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