Directions: and include relevant units to receive full credit keep answers brief

Question

Directions: and include relevant units to receive full credit keep answers brief but complete(1-2 sentences should suffice). Directions: For questions that require calculations, to receive partial credit and place a box around your final answer circle the species that may not appear in the rate equation for a reaction Reactant product Catalyst intermediate Mathematically, state the kinetic definition of equilibrium. Explain why it is virtually certain that the homogeneous gas-phase reaction 2NH _3 rightarrow N _2 + 3H2 does not occur by a one-step mechanism. If the reaction for line Haber process N _2 + 3H _2 rightarrow 2NH _3, . has d [H._2]/dt = -0.012 mol/L s at a certain instant, then what is d[NH _3] at that time? Derive the integrated rate law for a first-order reaction where A rightarrow Z (solve for [A]).

Explanation / Answer

Q3.

this does not occurs by 1 step mechanism since NH3 requires a catalyst to Form N2. This is Oxygen typicaly:

dinitrigoen comes from the diimide which was formed by hydrazine. It is then formed by Hydorxyl amide, the NH3 cmles and oxygen

HN=HN = Diimide; H2N--NH2 hydrazine , HO2HN-NH2OH hydroxyl amide

Q4.

find d([NH3])/dt at any time..

the atio is 3:2

so

when -0.12 mol of H2 dissapear, then 2/3*0.12 ml of NH3 appear, that is 0.08 mol of NH3 appears

Q5.

integrated law for first rder in which A = Z

clearly:

A -> Z

Rate = K[A] fo first order to be valid

the

solving for [A]t

dCa/dT = K*Ca

ln(Ca) = ln(Ca)0 - kt

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