CHEM 361
Name ______________________
Name ______________________
Name ______________________
Name ______________________
Name ______________________
Assignment 30 - (OUT OF 5 PTS )
Complete this assignment by working with your classmates. Please hand in one paper
per group. The assignment must be handed in by the end of class. It will be graded on
effort, as well as results.
1.
An equimolar mixture of CO(g) and H2 (g) is known as water gas.
Using the information below, calculate the enthalpy change when water gas reacts
with oxygen to produce carbon dioxide and steam.
CO(g) + ½ O 2 (g)  CO 2 (g)
H2 (g) + ½ O 2 (g)  H2 O(g)
2.
∆rHø = -282.984 kJ
∆rHø = -241.818 kJ
Use the following thermochemical equations
2ClO 3 (g) + O(g)  Cl2 O7 (g)
∆rHø = -75.7 kJ
∆rHø = 106.7 kJ
∆rHø = -287 kJ
O2 (g)  2O(g)
∆rHø = 498.340 kJ
2ClO 2 (g) + O3 (g)  Cl2 O7 (g)
O3 (g)  O2 (g) O(g)
to determine ∆rHø for
ClO2 (g) + O(g)  ClO3 (g)