Determine the rate law and the value of k for the following reaction using the data provided.
2 NO(g) + O2(g) > 2 NO2(g)
[NO]i (M) [O2]i (M) Initial Rate (M-1s-1)
0.030 0.0055 8.55 x 10^-3
0.030 0.0110 1.71 x 10^-2
0.060 0.0055 3.42 x 10^-2
Options:
A. Rate = 57 M-1s-1[NO][O2]
B. Rate = 3.8 M-1/2s-1[NO][O2]1/2
C. Rate = 3.1 x 10^5 M-3s-1[NO]2[O2]2
D. Rate = 1.7x10^3 M-2s–1[NO]2[O2]

see attached

Explanation:

Two methods are shown in attached notes... Method I is based upon Experimental Rate Trends; Method II is the 'Ratio Method'.

n+h→nh3

we must remember that nitrogen and hydrogen are both diatomic molecules in their standard gas form. this adjusts the equation to

n2+h2→nh3

now we need to adjust coefficients in order to balance the atoms on each side of the equation. currently we have 2 atoms of nitrogen and 2 atoms of hydrogen on the reactant side and 1 atom of nitrogen and 3 atoms of hydrogen on the product side.

we can balance the hydrogens by placing a coefficient of 2 in front of ammonia and a coefficient of 3 in front of the hydrogen.

n2+3h2→2nh3

this gives us 6 hydrogen on each side and coincidentally the nitrogens now equal 2 on each side.

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.