At a given set of conditions, 246.2 kj is given off when 1 mol of h2o(g) forms from its elements. under the same conditions, 284.6 kj is given off when 1 mol of h2o(l) forms from its elements. find δh for the vaporization of water at these conditions.

The ΔH for the vaporization of water at these conditions is 38.4 kJ/mol.

Explanation:

Given:

..[1]

..[2]

To find: ΔH for the vaporization of water at these conditions:

...[3]

Solution:

[1] - [2] = [3] (using Hess's law)

The ΔH for the vaporization of water at these conditions is 38.4 kJ/mol.

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying