Question

Consider the reaction below and the bond enthalpies in the table. N2(g) + 3H2(g) ? 2NH3(g) Bond bond enthalpy (kJ/mol) N = N 946 N-H 388 H-H 436 What can you conclude about the spontaneity of this reaction? Select one or more: A. The reaction is never spontaneous B. The reaction is spontaneous ONLY at low temperature C. The reaction is always spontaneous D. The reaction is spontaneous ONLY at high temperature

          Consider the reaction below and the bond enthalpies in the table.
N2(g) + 3H2(g) ? 2NH3(g)
Bond
bond enthalpy (kJ/mol)
N = N
946
N-H
388
H-H
436
What can you conclude about the spontaneity of this reaction?
Select one or more:
A. The reaction is never spontaneous
B. The reaction is spontaneous ONLY at low temperature
C. The reaction is always spontaneous
D. The reaction is spontaneous ONLY at high temperature

Consider the reaction below and the bond enthalpies in the table.
N2(g) + 3H2(g) ? 2NH3(g)
Bond
bond enthalpy (kJ/mol)
N = N
946
N-H
388
H-H
436
What can you conclude about the spontaneity of this reaction?
Select one or more:
A. The reaction is never spontaneous
B. The reaction is spontaneous ONLY at low temperature
C. The reaction is always spontaneous
D. The reaction is spontaneous ONLY at high temperature

Added by Miguel J.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Adi S

09/20/2023

Step 1

The total bond enthalpy of the reactants: N2(g): 1 x N≡N (946 kJ/mol) 3H2(g): 3 x H-H (3 x 436 kJ/mol) Total bond enthalpy of the reactants = 946 kJ/mol + 3(436 kJ/mol) = 2264 kJ/mol The total bond enthalpy of the products: 2NH3(g): 2 x N-H (2 x 388 Show more…

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Consider the reaction below and the bond enthalpies in the table. Consider the reaction below and the bond enthalpies in the table N2(g)+3H2(g)2N H3(g) Bond N= N N - H bond enthalpy (kJ/mol) 946 388 436 H - H What can you conclude about the spontaneity of this reaction? Select one or more: A. The reaction is never spontaneous B. The reaction is spontaneous ONLY at low temperature C. The reaction is always spontaneous D. The reaction is spontaneous ONLY at high temperature