8000 Moles of H₂(g)reacts with 4

question 64

Multiple Choice

8.000 moles of H₂(g) reacts with 4.000 mol of O₂(g) to form 8.000 mol of H₂O(l) at 25 °C and a constant pressure of 1.0133 bar.If 546.4 kJ of heat are released during this reaction,and PΔV is equal to -29.60 kJ,then:

• A)ΔH° = +546.4 kJ and ΔU = +576.06 kJ
• B)ΔH° = +546.4 kJ and ΔU = +516.8 kJ
• C)ΔH° = -546.4 kJ and ΔU = -516.8 kJ
• D)ΔH° = -546.4 kJ and ΔU = -576.0 kJ