posted by David on .
Consider the following problem:
Target: 2NOCl(g) ? N2(g)+ O2(g)+Cl2 (g) ?Hrxn= ?
1. 1/2 N2(g) + 1/2 O2(g)? NO(g) ?H= 90.3 kJ
2. NO(g) + 1/2 Cl2(g) ? NOCl(g) ?H= -38.6 kJ
As you determine the ¥ÄHrxn value for the target equation above, what must be done to step 2?
a. Step 2 requires no change
b. Step 2 should be only multiplied by 2
c. Step 2 should be reversed and multiplied by 1/2.
d. Step 2 should be reversed and multiplied by 2.
e. Step 2 should be only reversed