Chemistry

The following standard free energies are given for 25 degrees celcius.

1) N2(g) + 3H2(g)-> 2NH3(g) delta g = -33.0 kJ

2) 4NH3(g) + 5O2(g)-> 4NO(g) + 6H20() delta g = -1010.5 kJ

3) N2(g) + o2(g)-> 2NO(g) delta g = 173.1kJ

4) N2(g) + 2O2(g) -> 2NO2(g) delta g = 102.6 kJ

5) 2N2 + O2(g)-> 2N2O(g) delta g = 208.4kJ

Combine the reactions to obtain delta g for the following:

N2O(g) + 3/2O2(g) -> 2NO2(g)

The answer is -1.6kJ but I don't know how to solve it

1. 👍 0
2. 👎 0
3. 👁 205

Similar Questions

1. College Chemistry

The equilibrium constant Kc for the reaction N2(g) + 3H2(g) ->

asked by Anonymous on March 7, 2011
2. chemistry

Under laboratory conditions of 25.0 degrees celcius and 99.5 kPa, what is the maximum number of cubic decimeters of ammonia that could be produced from 1.50 dm3 of nitrogen according to the following equation: N2(g) + 3H2 (g) -->

asked by Susie on April 16, 2010
3. P-Chem

The equilibrium constant K for the hydrolysis of adenosine triphosphate (ATP) to adenosine diphosphate (ADP) and phosphate is 1.66X10^5 at 37 degrees celcius, and Standard Delta H is -20.1 kJ/mol. Calculate Standard Delta S for

asked by Angela on October 20, 2006
4. chemistry

What volume of nitrogen at 215 degress celcius and 715 mmHg would be required to react with .100 moles of hydrogen to produce ammonia? N2+3H2--> 2NH3

asked by Anonymous on April 16, 2012
5. chemistry

What volume of nitrogen at 215 degress celcius and 715 mmHg would be required to react with .100 moles of hydrogen to produce ammonia? N2+3H2--> 2NH3

asked by Anonymous on April 16, 2012
6. Chemistry

Calculate the standard free energy of the following reactions at 25C, using standard free energies of formation. a. C2H4(g)  3O2(g) ±£ 2CO2(g)  2H2O(l) b. CaCO3(s)  2H(aq) ±£ Ca2(aq)  H2O(l)  CO2(g)

asked by nikk on September 21, 2015
7. Chemistry

Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at -14.5 degrees celcius ? The freezing point for pure water is 0.0 degrees celcius and Kf is

asked by Nikita on January 16, 2011
8. chemistry

Find (triangle)H for N2H4 + CH4O > C2HO + N2 + 3H2 2NH3 > N2H4 + H2 22.5 kJ 2NH3 > N2 + 3H2 57.5 kJ CH20 + H2 > CH4O 81.2 kJ

asked by Anonymous on April 7, 2015
9. physics

A 2.8 kg gold bar at 99 degrees celcius is dropped into 0.21 kg of water at 23 degrees celcius What is the ﬁnal temperature? Assume the speciﬁc heat of gold is 129 J/kg times degrees celcius. Answer in units of degrees celcius

asked by help! on January 30, 2012
10. physical chemistry

In an experiment, at a total pressure of 10atm and 400 degree celcius, the equilibrium mixture 2NH3=N2+3H2 the ammonia was found to have dissociated to the extent of 96%. Calculated Kp for the rxn. (reversible rxn).

asked by abby on August 14, 2014

More Similar Questions