Author Question: When 2.000 moles of H2(g) reacts with 1.000 mol of O2(g) to form 2.000 mol of H2O(l) at 25C and a ... (Read 61 times)

rlane42 · **on:** Aug 27, 2018

When 2.000 moles of H2(g) reacts with 1.000 mol of O2(g) to form 2.000 mol of H2O(l) at 25C and a constant pressure of 1.00 atm. If 136.6 kJ of heat are released during this reaction, and PV is equal to -7.400 kJ, then

A) H = +136.6 kJ and E = +144.0 kJ.
B) H = +136.6 kJ and E = +129.2 kJ.
C) H = -136.6 kJ and E = -129.2 kJ.
D) H = -136.6 kJ and E = -144.0 kJ.

Question 2

Classify the following compounds as weak acids (W) or strong acids (S): hypochlorous acid perchloric acid chloric acid

A) W S S
B) S S S
C) S W W
D) W W W
E) W S W