A rigid, insulated container is divided into two equal halves by a thin removable…

CHEMISTRY · Single correct · A Level · Chemistry · Thermodynamics · Thermodynamics

Problem

A rigid, insulated container is divided into two equal halves by a thin removable partition. One half contains 1 mol1\,\text{mol} of an ideal gas at 300 K300\,\text{K}; the other half is vacuum. The partition is suddenly removed and the gas expands to fill the entire container. Which option correctly gives the signs of ΔSsys\Delta S_{\text{sys}}, ΔSsurr\Delta S_{\text{surr}}, and ΔSuniv\Delta S_{\text{univ}} for this process? (a) ΔSsys=0\Delta S_{\text{sys}} = 0, ΔSsurr=0\Delta S_{\text{surr}} = 0, ΔSuniv=0\Delta S_{\text{univ}} = 0 (b) ΔSsys>0\Delta S_{\text{sys}} > 0, ΔSsurr<0\Delta S_{\text{surr}} < 0, ΔSuniv=0\Delta S_{\text{univ}} = 0 (c) ΔSsys>0\Delta S_{\text{sys}} > 0, ΔSsurr=0\Delta S_{\text{surr}} = 0, ΔSuniv>0\Delta S_{\text{univ}} > 0 (d) ΔSsys>0\Delta S_{\text{sys}} > 0, ΔSsurr>0\Delta S_{\text{surr}} > 0, ΔSuniv>0\Delta S_{\text{univ}} > 0

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