From the following data, calculate the average bond enthalpy for the noh bond: nh3(g) ¡nh2(g) 1 h(g) ¢h° 5 435 kj/mol nh2(g) ¡nh(g) 1 h(g) ¢h° 5 381 kj/mol nh(g) ¡n(g) 1 h(g) ¢h° 5 360 kj/mol

The average bond enthalpy for the N-H bond is 392 kJ/mol.

Explanation:

..[1]

..[2]

..[3]

On adding [1] , [2] and [3] , we get:

There three bonds N-H bond sin ammonia. Then average bond enthalpy of single N-H bond is :

The average bond enthalpy for the N-H bond is 392 kJ/mol.

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explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)

c

explanation: