Kinetics g to the following reaction, what is the rate of appearance of PNH), if

Question

Kinetics g to the following reaction, what is the rate of appearance of PNH), if the rate of disappear PCI,d + 3NH,(g) P(NH),(g) + 3HC1(g) ance of NH, is 3.4 × 10-3 M/s? 4. Let's suppose that the rate law for the reaction above is rate kINH,PIPCy a. What is the order of the reaction with respect to NH? b. What is the order of the reaction with respect to PCl,? c. What is the overall order of the reaction? 5. Look at a general rate law for a reaction, rate kAl[B]p, explain which term of the rate law the tem- perature has an impact on and how it impacts the term.

Explanation / Answer

3)
rate of reaction in terms of P(NH3)3:
rate = rate of appearance of P(NH3)3

rate of reaction in terms of NH3
rate = (1/3)*rate of disappearance of NH3

equate both:
rate of appearance of P(NH3)3 = (1/3)*rate of disappearance of NH3
= (1/3)*(3.4*10^-3 M/s)
= 1.1*10^-3 M/s

Answer: 1.1*10^-3 M/s

4)
a)
order of NH3 = power of NH3 in rate law = 2
Answer: 2

b)
order of PCl3 = power of PCl3 in rate law = 1
Answer: 1

c)
overall order = sum of all orders
= 2+1
= 3
Answer: 3

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