22. Calculate the entropy change in surroundings when 1.00 mol of H₂O (l) is formed under standard conditions. Δ_fH^? = – 286 kJ mol^–1.

<p><strong>22.&nbsp;</strong>q<em>_rev</em>&nbsp;= (-Δ_fH^?) = - (- 286kJ mol^-1) = 286 x 103 Jmol^-1&nbsp;= 286000 J mol^-1</p><p>ΔS&nbsp;_{(surroundings)&nbsp;}<strong>=&nbsp;</strong>q<em>_rev</em>/ T = 286000 J mol^-1&nbsp;/ 298 K</p><p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp; 959.73 J mol^-1&nbsp;K^-1</p>

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