One mole of ice is converted into water at 1 atm , 400 K . In conversion entropies of H 2 O ( s ) and H 2 O ( l ) are 38 and 60 Jmol − 1 K − 1 respectively the enthalpy change for the conversion i

Question

One mole of ice is converted into water at 1 atm , 400 K . In conversion entropies of H 2 ​ O ( s ) and H 2 ​ O ( l ) are 38 and 60 Jmol − 1 K − 1 respectively the enthalpy change for the conversion is -

TestHub · Accepted Answer

Reaction will be spontaneous at 400 K and 1 atm.

$H_{2} O (s) \to H_{2} O (l) Δ S = 60 - 38 = 22 Jmo l^{- 1} K^{- 1} Δ G < 0 Δ H - T Δ S < 0 Δ H < T Δ S Δ H < (400) (22) Δ H < 8800$

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