1. At SATP, which reaction below is spontaneous? 2NaF(s)+Cl2(g)→2NaCl(s)+F2(g) 2KCl(s)+I2(g)→2KI(s)+Cl2(g) 2F(g)→F2(g) O2(g)→2O(g) 2. For which of...

1. At SATP, which reaction below is spontaneous?

	2NaF(s)+Cl₂(g)→2NaCl(s)+F₂(g)
	2KCl(s)+I₂(g)→2KI(s)+Cl₂(g)
	2F(g)→F₂(g)
	O₂(g)→2O(g)

2. For which of these is there an increase in entropy?

	H₂O(l)+CO₂(g)→H₂CO₃(aq)
	2Na₃PO₄(aq)+3CaCl₂(aq)→6NaCl(aq)+Ca₃(PO₄)₂(s)
	Ba(OH)₂(s)+2NH₄Cl(s)→BaCl₂(aq)+2NH₃(g)+2H₂O(l)
	H₂O(g)→H₂O(s)

Calculate ∆Sº for the reaction below:

N₂(g)+2O₂(g)⇄2NO₂(g)

where ∆Sº for N₂(g), O₂(g), & NO₂(g), respectively, is 191.5, 205.0, & 240.5 J/mol-K

	-156.0 J/K
	156.0 J/K
	120.5 J/K
	-120.5 J/K

4. ∆S_vap for H₂O at its boiling point and 1 atm is (∆H_vap of H₂O = 40.7kJ/mol)

	109 J/K
	40,700 J/K
	407 J/K
	137 J/K

Solutions

Expert Solution

queen_honey_blossom answered 1 year ago

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