Question

In: Chemistry

Q1. A catalyst support adsorbs 2 cm3 of nitrogen at 1 mbar pressure and 6 cm3...

Q1. A catalyst support adsorbs 2 cm3 of nitrogen at 1 mbar pressure and 6 cm3 at 6 mbar. Find the volume of gas corresponding to one monolayer coverage (Vm).

(nb Give answer to 2 dp even if its an integer - eg write 5.00. DO NOT give units in your answer)

Q2.

In the following mechanism * indicates a radical species. Identify the nature of each of the steps in the reaction:

1.     Br2 + H2 --> 2Br* + H2

2.     Br2 + Br2--> 2Br* + Br2

3.     Br* + H2  --> HBr + H*

4.     H* + Br2 --> HBr + Br*

5.     H* + HBr --> H2 + Br*

6.     Br* + HBr --> Br2 + H*

7.     2Br* + Br2 --> 2Br2

      -       A.       B.       C.       D.   

Identify the nature of Step 1

1.     Br2 + H2 --> 2Br* + H2
      -       A.       B.       C.       D.   

Identify the nature of Step 2

2.     Br2 + Br2--> 2Br* + Br2
      -       A.       B.       C.       D.   

Identify the nature of Step 3

3.     Br* + H2  --> HBr + H*
      -       A.       B.       C.       D.   

Identify the nature of Step 4

4.     H* + Br2 --> HBr + Br*
      -       A.       B.       C.       D.   

Identify the nature of Step 5

5.     H* + HBr --> H2 + Br*
      -       A.       B.       C.       D.   

Identify the nature of Step 6

6.     Br* + HBr --> Br2 + H*
      -       A.       B.       C.       D.   

Identify the nature of Step 7

7.     2Br* + Br2 --> 2Br2
A.

Inhibition
B.

Initiation
C.

Termination
D.

Propagation

Solutions

Expert Solution

1) BET constant C is not given.

2)the symbol in bold letters is the correct answer

A.

Inhibition
B.

Initiation
C.

Termination
D.

Propagation
      -       A.    B.       C.       D.   

Identify the nature of Step 1

1.     Br2 + H2 --> 2Br* + H2
      -    A.       B.       C.       D.   

Identify the nature of Step 2

2.     Br2 + Br2--> 2Br* + Br2
      -       A.       B.       C.       D.   

Identify the nature of Step 3

3.     Br* + H2  --> HBr + H*
      -       A.       B.       C.       D.   

Identify the nature of Step 4

4.     H* + Br2 --> HBr + Br*
      -       A.       B.       C.       D.

Identify the nature of Step 5

5.     H* + HBr --> H2 + Br*
      -       A.       B.       C.       D.

Identify the nature of Step 6

6.     Br* + HBr --> Br2 + H*
      -       A.       B.       C.       D.   

Identify the nature of Step 7

7.     2Br* + Br2 --> 2Br2

queen_honey_blossom answered 1 month ago
Next > < Previous

Related Solutions

Nitrogen and hydrogen combine at high temperature, in the presence of a catalyst, to produce ammonia....
Nitrogen and hydrogen combine at high temperature, in the presence of a catalyst, to produce ammonia. After complete reaction, how many molecules of ammonia are produced? How many molecules of H2 remain? How many molecules of N2 remain? What is the limiting reactant? Assume 4 molecules of nitrogen and 9 molecules of hydrogen are present.
Nitrogen and hydrogen combine at high temperature, in the presence of a catalyst, to produce ammonia....
Nitrogen and hydrogen combine at high temperature, in the presence of a catalyst, to produce ammonia. N2(g)+3H2(g)-->2NH3(g) Assume 0.210 mol N2 and 0.664 mol H2 are present initially. 1.)After complete reaction, how many molecules of ammonia are produced? 2.How many molecules of H2 remain? 3.How many molecules of N2 remain? 4.What is the limiting reactant, Hydrogen or Nitrogen?
nitrogen and hydrogen combine at high temperature, in the presence of a catalyst, to produce ammonia....
nitrogen and hydrogen combine at high temperature, in the presence of a catalyst, to produce ammonia. N2(g)+3H2(g) > 2NH3(g). assume 0.270 mol of N2 and 0.877 mol of H2 are present initially. Questions- 1. after complete reaction, how many moles of ammonia are produced? 2. how many moles of H2 remain? 3. how many moles of N2 remain? 4. what is the limiting reactant(hydrogen or nitrogen)?
1. A sample of nitrogen gas at a pressure of 0.947 atm and a temperature of...
1. A sample of nitrogen gas at a pressure of 0.947 atm and a temperature of 213 °C, occupies a volume of 687 mL. If the gas is cooled at constant pressure until its volume is 570 mL, the temperature of the gas sample will be 2. A helium-filled weather balloon has a volume of 615 L at 23 °C and 754 mm Hg. It is released and rises to an altitude of 7.93 km, where the pressure is 323...
1. 88.45 kL of nitrogen dioxide gas is collected in a vessel under a pressure is...
1. 88.45 kL of nitrogen dioxide gas is collected in a vessel under a pressure is 0.746 atm. On the next day, the pressure in the vessel was changed to 1.24 atm. What will the volume of the NO2 gas be on the second day if the gas was kept at 56.4 °F? 2. What is the volume of 62.3 g of iodine gas (I2) at STP? 3. At STP, 2.561 μL of a gas weights 0.689 cg. Calculate the...
A 80.0 cm3 box contains helium at a pressure of 2.00 atm and a temperature of...
A 80.0 cm3 box contains helium at a pressure of 2.00 atm and a temperature of 80.0 ∘C. It is placed in thermal contact with a 220 cm3 box containing argon at a pressure of 4.50 atm and a temperature of 420 ∘C. A)What is the initial thermal energy of each gas? B)What is the final thermal energy of each gas? C)How much heat energy is transferred, and in which direction? D)What is the final temperature? E)What is the final...
A 120 cm3 box contains helium at a pressure of 2.10 atm and a temperature of...
A 120 cm3 box contains helium at a pressure of 2.10 atm and a temperature of 100 ∘C. It is placed in thermal contact with a 210 cm3 box containing argon at a pressure of 4.00 atm and a temperature of 390 ∘C. What is the final thermal energy of each gas? How much heat energy is transferred, and in which direction? What is the final temperature? What is the final pressure in each box?
A monatomic ideal gas is at an initial pressure of 1.54 atm and 76.0 cm3. The...
A monatomic ideal gas is at an initial pressure of 1.54 atm and 76.0 cm3. The gas undergoes an isochoric increase in pressure to 2.31 atm, then an isobaric expansion to 114 cm3. Pressure is reduced isochorically to the original pressure before an isobaric compression returns the gas to its initial values. For 1.95 moles of the gas, complete the following: a) Generate a sketch of the PV diagram, with values clearly represented. b) Find the heat absorbed and heat...
A 100 cm3 box contains helium at a pressure of 2.20 atm and a temperature of...
A 100 cm3 box contains helium at a pressure of 2.20 atm and a temperature of 100 ∘C. It is placed in thermal contact with a 220 cm3 box containing argon at a pressure of 3.70 atm and a temperature of 410 ∘C. a) What is the initial thermal energy of each gas? b) What is the final thermal energy of each gas? c) How much heat energy is transferred, and in which direction? d) What is the final temperature?...
A 80.0 cm3 box contains helium at a pressure of 2.50 atm and a temperature of...
A 80.0 cm3 box contains helium at a pressure of 2.50 atm and a temperature of 110 ∘C. It is placed in thermal contact with a 210 cm3 box containing argon at a pressure of 4.20 atm and a temperature of 390 ∘C What is the final thermal energy of each gas? Ef(He),Ef(Ar) How much heat energy is transferred, and in which direction? What is the final temperature? What is the final pressure in each box? What is the final...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT