Answer: In condensation process, gas is converted into a liquid system which means system moves from a less ordered state to a more ordered state. So, entropy change of system will be negative.
Step-by-step explanation:
As we know Entopy of Gas>Liquid>Solid.
So, change in entropy ΔS = Sgas - Sliquid = -ve value.
Hence,Change in entropy of this system will be -ve