If ∆Hº = 220 kJ/mol and ∆Sº = –150 J/mol•K, calculate ∆Gº, in units of kJ/mol,...

Question

Question

If ∆Hº = 220 kJ/mol and ∆Sº = –150 J/mol•K, calculate ∆Gº, in units of kJ/mol, at 25ºC

Answer 1

Answer #1

Given

∆Hº = 220 kJ/mol = 220x 1000 J/mol

∆Sº = –150 J/mol•K

T = 25ºC = 25 +273 = 298 K

Now

∆Gº = ∆Hº - T ∆Sº

= 220 x1000 - 298 x (-150)

= 264700 J/mol

∆Gº = 264.7 KJ/mol

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Answer 2

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