For the process H2O (ℓ) → H2O (g)at t = 100°C and 1 atmosphere pressure, the correct choice is

Engineering

Chemistry

Entropy Calculations

Question

For the process

H₂O (ℓ) → H₂O (g)

at t = 100°C and 1 atmosphere pressure, the correct choice is

ΔS_system > 0 and ΔS_surroundings < 0

ΔS_system < 0 and ΔS_surroundings < 0

ΔS_system < 0 and ΔS_surroundings > 0

ΔS_system > 0 and ΔS_surroundings > 0

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H₂O(ℓ) → H₂O(g)

For system

Liquid is getting converted into gas $\begin{matrix} {ΔS}_{system} > 0 \end{matrix}$

Process is endothermic ⇒ Heat is given by system

ΔS_surrounding $= \frac{q_{surr}}{T}$

where q_surrounding= –ΔH

$∵$ q_surr < 0

ΔS_surr < 0