Author Question: When 10.00 moles of H2(g) reacts with 5.000 mol of O2(g) to form 10.00 mol of H2O(l) at 25C and a ... (Read 208 times)

altibaby · **on:** Aug 27, 2018

When 10.00 moles of H2(g) reacts with 5.000 mol of O2(g) to form 10.00 mol of H2O(l) at 25C and a constant pressure of 1.00 atm. If 683.0 kJ of heat are released during this reaction, and PV is equal to -37.00 kJ, then

A) H = +683.0 kJ and E = +720.0 kJ.
B) H = +683.0 kJ and E = +646.0 kJ.
C) H = -683.0 kJ and E = -646.0 kJ.
D) H = -683.0 kJ and E = -720.0 kJ.

Question 2

What process replenishes O2?

What will be an ideal response?