Question

In: Chemistry

#9 Writing and Interpreting a Rate Law Expression 1. The gas phase reaction of nitric oxide...

#9 Writing and Interpreting a Rate Law Expression

1. The gas phase reaction of nitric oxide and oxygen yields nitrogen dioxide:

2 NO (g) + O₂ (g) ----> 2 NO₂ (g)

The rate law is rate = k[NO]²[O₂].

a. What is the reaction order with respect to each reactant and what is the overall reaction order?

b. What are the units for k if time was expressed in units of minutes?

c. If the concentration of NO was doubled and the concentration of O₂ was halved, what would happen to the rate?

d. If the NO was unchanged and the concentration of O₂ was doubled, what would happen to the rate?

e. If both of the reactants were tripled, what would happen to the rate?

2. The reaction…

2 ICl (g) + H₂ (g) ------> I₂ (g) + 2 HCl (g)

is first order in H₂ and first order in ICl. Write the rate law expression and specify the units of the rate constant, k.

3. The reaction of CO and NO₂ is second order with respect to NO₂ and zero order with respect to CO.

a. Write the rate law expression.

b. Expressing time in units of seconds, what are the units for k?

c. How does the reaction rate change if the CO concentration is decreased by a factor of 5?

d. What is the change in the rate if the concentrations of both reactants is doubled?

4. Using time units of hours, what would the units for k be for a reaction that is 1½ order?

5. For the following rate law…

Rate = k[NO₂]²[H₂]

a. What is the order with respect to each reactant?

b. What is the overall order for the reaction?

c. What are the units for the rate constant, k, if the time unit is seconds?

d. What would happen to the rate if each reactant was quadrupled?

e. What would happen to the rate if NO₂ was unchanged and the H₂ was halved?

Expert Solution

HOPE YOU WILL LIKE MY ANSWER:)

queen_honey_blossom answered 3 months ago

- The gas phase oxidation of nitric oxide is given as; 2NO+ O2 --> 2NO2 ?rO2...

- The gas phase oxidation of nitric oxide is given as; 2NO+ O2 --> 2NO2 ?rO2 = k(CNO)^2 (CO)^2 kmoles/m3 .h The feed stream containing 9% NO, 8% O2, 1% NO2 and 82% N2 is fed to an isothermal PF reactor with a rate of 10000 m3 /h at 450oC and 2 atm. The reaction rate constant is given as 0.7x104 (kmoles/m^3 )^-2 h^-1 a) Setup a stoichiometric table and express the concentration of each species in the reaction as...

Find the rate law expression and the rate law constant for the reaction whose data is...

Find the rate law expression and the rate law constant for the reaction whose data is in the table below. Trial [X] [Y] Rate 1 2.0 2.0 2.5 x 10—6 2 2.0 6.0 2.25 x 10—5 3 4.0 2.0 2.0 x 10—5 b. Calculate the rate of the reaction described in part a) when [X] = 0.25 mol/L and [Y] = 6.0 mol/L.

Define and differentiate between the terms reaction rate, rate expression, rate law, reaction order, and instantaneous...

Define and differentiate between the terms reaction rate, rate expression, rate law, reaction order, and instantaneous rate law.

A) For the reaction of oxygen and nitrogen to form nitric oxide, consider the following thermodynamic...

A) For the reaction of oxygen and nitrogen to form nitric oxide, consider the following thermodynamic data (Due to variations in thermodynamic values for different sources, be sure to use the given values in calculating your answer.): ΔHrxn∘ 180.5kJ/mol ΔSrxn∘ 24.80J/(mol⋅K) Calculate the temperature in kelvins above which this reaction is spontaneous. Express your answer to four significant figures and include the appropriate units. B) The thermodynamic values from part A will be useful as you work through part B:...

Ammonia is burned to form nitric oxide in the following reaction: NH3 + O2  NO...

Ammonia is burned to form nitric oxide in the following reaction: NH3 + O2  NO + H2O (i) Determine if the above stoichiometric equation is balanced and calculate the ratio of kmol NH3 react/kmol NO formed (ii) If 25% excess O2 is fed to a continuous reactor at a rate of 250 kmol O2/h, calculate the rate of ammonia fed to a reactor in kmol/min. (iii) If the above reaction is carried out in a batch reaction with 90...

3/ At 2000 K , nitrogen gas and oxygen gas combine to form nitric oxide according...

3/ At 2000 K , nitrogen gas and oxygen gas combine to form nitric oxide according to the following reaction: N2(g) + O2(g) ⇌ 2NO(g) ΔH = +1.81 KJ with an equilibrium constant K of 4.1 x 10^-4. If 0.50 mole of N2 and 0.86 mole of O2 are put into a 2.0 L container at 2000 K , what would the equilibrium concentrations of all species be ? 4/ For the reaction in question #3. How would the following...

1A) The “laughing gas”, N2O , can be made by reducing nitric oxide, NO, with hydrogen....

1A) The “laughing gas”, N2O , can be made by reducing nitric oxide, NO, with hydrogen. This reaction can be described by: 2 NO (g) + H2 (g) à N2O (g) + H2O (l) The amount of NO changed from .852 moles to .128 moles, in 2.25 second, within a 5.28 Liter container during a synthesis. The rate of production for N2O in molarity per second is: (a) - 0.0267 (b) + 0.0305 (c) + 0.0494 (d) + 0.0267 1B....

Question 1 essay writing-just one page part A Nitric oxide is involved in firefly flashing. Studying...

Question 1 essay writing-just one page part A Nitric oxide is involved in firefly flashing. Studying this could provide information to help us understand the action of nitric oxide in other systems. What processes are regulated in humans by nitric oxide? Look online and find a few. Give some examples. part B In what way would understanding python digestion mechanisms help humans? Read the paper on python digestive physiology (python digestion paper 1 on Blackboard) • Write a page...

Elementary , irreversible and isothermal gas phase reaction A+B--------- C. Reaction rate constant is 20M-1min-1 at...

Elementary , irreversible and isothermal gas phase reaction A+B--------- C. Reaction rate constant is 20M-1min-1 at temeperature 80 degree celcius . Feed flow rate (10L/min) to the plug flow reactor , which volume is 80 litres, contains 2%A and 2%B and inert gas temperature of 80 degree celcius and pressure 6 bar . Calculate the conversion of A.

1. Ammonia gas can be prepared by the reaction of a metal oxide such as CaO...

1. Ammonia gas can be prepared by the reaction of a metal oxide such as CaO with NH4Cl. Use atomic masses: N: 14.01; H: 1.01; O: 16.00; Ca: 40.08 CaO (s) + NH4Cl (s) à NH3 (g) + H2O (g) + CaCl2 (s) a. Balance the above equation. b. If 11.2 g of CaO and 22.4 g of NH4Cl are mixed, which reactant is the limiting reagent? c. What is the mass of NH3 to be produced? d. How much...