ChE Reaction Flashcards

1
Q

It involves a catalyst in the progression of chemical reaction

It is a chemical reaction in which a catalyst increases the rate of reaction. These catalysts increase the reaction rate by reducing the activation energy of the reaction.

A

Catalytic Reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

It does not involve a catalyst in the reaction.

These are chemical reactions in which a catalyst does not involve in the reaction process. Therefore, in these reactions, the
reaction rate does not increase by any external influence.

A

Non-catalytic Reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

It involves reactants, products, and catalyst in the same phase of matter.

A

Homogeneous catalytic reactions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

It involves reactants and products in the same phase of matter.

A

Homogeneous non-catalytic reactions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

It involves reactants, products, and catalyst in the different phase of matter.

A

Heteregeneous catalytic reactions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

It involves reactants and products in the different phase of matter.

A

Heteregenenous non-catalytic reactions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Burning of flames

Homogenenous or Heterogeneous
Non-catalytic or Catalytic

A

Homogeneous non-catalytic reaction

It only exist in vapor.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Liquid reactions and enzyme/microbial reactions

Homogenenous or Heterogeneous
Non-catalytic or Catalytic

A

Homogenous catalytic reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Burning of coal (as feed)

Homogenenous or Heterogeneous
Non-catalytic or Catalytic

A

Heteregeneous non-catalytic reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Burning of coal (as feed)

Homogenenous or Heterogeneous
Non-catalytic or Catalytic

A

Heteregeneous non-catalytic reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Roasting of ores

Homogenenous or Heterogeneous
Non-catalytic or Catalytic

A

Heteregeneous non-catalytic reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Gas absorption with chemical reactions

Homogenenous or Heterogeneous
Non-catalytic or Catalytic

A

Heteregeneous non-catalytic reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Ammonia synthesis

Homogenenous or Heterogeneous
Non-catalytic or Catalytic

A

Heteregeneous catalytic reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Cracking of crude oil

Homogenenous or Heterogeneous
Non-catalytic or Catalytic

A

Heteregeneous catalytic reaction

HV -» lighter valueable components

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Oxidation of ammonia

Homogenenous or Heterogeneous
Non-catalytic or Catalytic

A

Heteregeneous catalytic reaction

It produces HNO3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Rate Equation

aA + bB –> cC + dD

A

-rᴀ = 1/V (dNᴀ/dt)
-rᴀ = -dCᴀ/dt

17
Q

Expressions of Rate

aA + bB –> cC +dD

A

-rᴀ/a = -rʙ/b = rc/c = rᴅ/d
-1/a (dCᴀ/dt) = -1/b (dCʙ/dt)
= 1/c (dCc/dt) = 1/d (dCᴅ/dt)

18
Q

Law of Mass Action

ORDER

A

r α Cᵣₑₐₜₐₙₜⁿ

A + B —> P
-rᴀ = kCᴀᵃCʙᵝ
n = α+β

19
Q

Type of Reaction:
2A + B —> P

-rᴀ = kCᴀ²Cʙ¹

A

Elementary Reaction

20
Q

Type of Reaction:
2A + B —> P

-rᴀ = kCᴀ²

A

Non-elementary Reaction

21
Q

Unit Rate of Constant, k

A

k = Vⁿ⁻¹ / molⁿ⁻¹ · t

V/mol = 1/conc.

22
Q

Zero Order

3

A

-rᴀ = kCᴀo = k

  • Cᴀo - Cᴀ = kt
  • Cᴀo•xᴀ = kt
  • Cᴀ = Cᴀo(1-xᴀ) ; Constant Vol. Batch Reactor Only
23
Q

First Order

2

A

-rᴀ = kCᴀ

  • ln(Cᴀo/Cᴀ) = kt E7-170
  • -ln(1-xᴀ) = kt

lnCᴀ = -kt + lnCᴀo

24
Q

Second Order

2

A

-rᴀ = kCᴀ²

  • 1/Cᴀ - 1/Cᴀo = kt
  • xᴀ/(1-xᴀ) = ktCᴀo
25
Nth Order | 2
-rᴀ = kCᴀⁿ * Cᴀ¹⁻ⁿ - Cᴀo¹⁻ⁿ = (n-1)kt | ln(-rᴀ) = n ln Cᴀ + ln k **(E7-168)**
26
General Proportionality Between Half Life and Initial Concentration
t½ α Cᴀo¹⁻ⁿ α 1/ Cᴀoⁿ⁻¹ **Use E7-171**
27
Temperature Dependence of k
k = kₒTᵐ e⁻ᴱ/ᴿᵀ **(E7-9)** ln(k) = ln(kₒ) - E/R (1/T) **(E7-169)** **ln[k₂/k₁(T₁/T₂)ᵐ] = E/R (1/T₁ - 1/T₂)** | where: kₒ = pre-proportional factor ## Footnote k₂ T₁ k₁ T₂
28
Arrhenius Law
ln[k₂/k₁] = E/R (1/T₁ - 1/T₂) | m=0 ## Footnote no T1 and T2
29
Collision Theory
ln[k₂/k₁ · √(T₁/T₂)] = E/R (1/T₁ - 1/T₂) | m= 1/2 ## Footnote square root T2 and T2
30
Transition State Theory
ln[(k₂/k₁)(T₁/T₂)] = E/R (1/T₁ - 1/T₂) | m=1 ## Footnote multiply T1 and T2
31
Parallel Reactions . k₁ A ---> R -rᴀ₁ = k₁Cᴀ = rʀ k₂ A ---> S -rᴀ₂ = k₂Cᴀ = rꜱ
-rᴀ = k₁Cᴀ + k₂Cᴀ * ln(Cᴀo/Cᴀ) = (k₁ + k₂)t * k₁/k₂ = Cʀ/Cs = nʀ/ns
32
Cᴀo - Cᴀ is equal to
Cᴀoxᴀ