Post a New Question

chemistry

posted by .

Which of the following equations represents a reaction for which the delta H can be called a standard enthalpy of formation, delta Hf?

a) FeO(s) + CO2(g) -> FeCO3(s)
b) 1/2 N2(g) + 2 O(g) -> NO2(g)
c) 2 Na(s) + Cl2(g) -> 2 NaCl(s)
d) Ba(s) + N2(g) + 3 O2(g) -> Ba(NO3)2(s)
e) more than one of the four equations above are standard enthalpies of formation.

I chose answer e.
is it correct?

  • chemistry -

    No.
    a is out because it contains compounds on the left.
    b is out because O is not the standard state.
    c is out because coefficient NaCl is 2.
    e. can't be right since I've listed all but d.

Answer This Question

First Name
School Subject
Your Answer

Related Questions

More Related Questions

Post a New Question