Using the thermodynamic information in the ALEKS Data tab,calculate the standard reaction free energy of...

Question

Question

Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction free energy of the following chemical reaction:

N2g+3H2g→2NH3g

Round your answer to zero decimal places.

Hydrogen H2 (9) 130.7

Nitrogen N2 (9) 191.6 N2H4 (9) 95.4 159.4 238.5 N2H4(0) 50.6 149.3 121.2 NH3 (9) -45.9 -16.4 192.8 NH3 (1) -69.54 -26.50 95.0

Answer 1

Answer #1

Balanced reaction : N₂ (g) + 3 H₂ (g) 2 NH₃ (g)

Standard reaction free energy, G^o = G^o_f products - G^o_f reactants

G^o = 2 * G^o_f NH₃ (g) - [G^o_f N₂ (g) + 3 * G^o_f H₂ (g)]

G^o = 2 * (-16.4 kJ/mol) - [(0) + 3 * (0)]

G^o = -32.8 kJ - 0

G^o = -33 kJ (rounded to zero decimal places)

Answer 2

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