posted by georgina .
how to calculate delta h for the reaction
2B(s)+3H2(g)arrow B2H6(g)given the following data:
Use equation 1, reverse equation 2, multiply equation 3 by 3 and multiply equation 4 by 3. Add them. Don't forget to reverse the sign of equations you reverse.
Why multiply equation 4 by 3?
Wouldn't there be a 3/2 left over?