
Catalysis Concepts and Challenges

Interactive Video
•
Chemistry
•
11th - 12th Grade
•
Hard

Amelia Wright
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main advantage of heterogeneous catalysis over homogeneous catalysis?
Higher selectivity
Recyclability of catalysts
Simpler reaction mechanisms
Lower cost of catalysts
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the context of catalysis, what is the difference between adsorption and absorption?
Adsorption occurs in gases, absorption in liquids
Adsorption is reversible, absorption is irreversible
Adsorption is a chemical process, absorption is physical
Adsorption involves adhesion, absorption involves transfer
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to maximize the contact area between the catalytic metal and reactants in heterogeneous catalysis?
To increase the reaction temperature
To improve the utilization of the metal
To reduce the reaction time
To enhance the stability of the catalyst
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role do defects play in the performance of catalytic surfaces?
They make the surface smoother
They contribute to variability in reactivity
They decrease the reactivity
They prevent catalyst poisoning
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is single-atom catalysis expected to improve in the field of heterogeneous catalysis?
Cost of catalysts
Selectivity of reactions
Surface area of catalysts
Precision at the atomic level
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a common issue with the life expectancy of solid catalysts?
They are too expensive
They are prone to fouling
They are difficult to produce
They are not recyclable
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can ligands enhance the reactivity of transition metals in catalysis?
By reducing the pressure
By changing the phase
By tuning the reactivity
By increasing the temperature
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