Directly related questions
- 20N.3.hl.TZ0.4d: Zeolites can be used as catalysts in the manufacture of CNT. Explain, with reference to their...
- 20N.3.hl.TZ0.4d: Zeolites can be used as catalysts in the manufacture of CNT. Explain, with reference to their...
- 20N.3.hl.TZ0.d: Zeolites can be used as catalysts in the manufacture of CNT. Explain, with reference to their...
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17N.3.sl.TZ0.5:
Catalysts can take many forms and are used in many industrial processes.
Suggest two reasons why it might be worth using a more expensive catalyst to increase the rate of a reaction.
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17N.3.sl.TZ0.5:
Catalysts can take many forms and are used in many industrial processes.
Suggest two reasons why it might be worth using a more expensive catalyst to increase the rate of a reaction.
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18M.3.sl.TZ1.4c.i:
The production of HDPE involves the use of homogeneous catalysts. Outline how homogeneous catalysts reduce the activation energy of reactions.
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18M.3.sl.TZ1.4c.i:
The production of HDPE involves the use of homogeneous catalysts. Outline how homogeneous catalysts reduce the activation energy of reactions.
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18M.3.sl.TZ1.c.i:
The production of HDPE involves the use of homogeneous catalysts. Outline how homogeneous catalysts reduce the activation energy of reactions.
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18M.3.sl.TZ2.3c.iii:
Vanadium(V) oxide is used as the catalyst in the conversion of sulfur dioxide to sulfur trioxide.
SO2(g) + V2O5(s) → SO3(g) + 2VO2(s)
O2(g) + 2VO2(s) → V2O5(s)
Outline how vanadium(V) oxide acts as a catalyst.
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18M.3.sl.TZ2.3c.iii:
Vanadium(V) oxide is used as the catalyst in the conversion of sulfur dioxide to sulfur trioxide.
SO2(g) + V2O5(s) → SO3(g) + 2VO2(s)
O2(g) + 2VO2(s) → V2O5(s)
Outline how vanadium(V) oxide acts as a catalyst.
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18M.3.sl.TZ2.c.iii:
Vanadium(V) oxide is used as the catalyst in the conversion of sulfur dioxide to sulfur trioxide.
SO2(g) + V2O5(s) → SO3(g) + 2VO2(s)
O2(g) + 2VO2(s) → V2O5(s)
Outline how vanadium(V) oxide acts as a catalyst.
- 18N.3.sl.TZ0.2c.ii: Identify another advantage of using a zeolite instead of concentrated sulfuric acid.
- 18N.3.sl.TZ0.2c.ii: Identify another advantage of using a zeolite instead of concentrated sulfuric acid.
- 18N.3.sl.TZ0.c.ii: Identify another advantage of using a zeolite instead of concentrated sulfuric acid.
- 18N.3.hl.TZ0.2c: A zeolite is an alternative catalyst for this reaction. Explain how zeolites act as selective...
- 18N.3.hl.TZ0.2c: A zeolite is an alternative catalyst for this reaction. Explain how zeolites act as selective...
- 18N.3.hl.TZ0.c: A zeolite is an alternative catalyst for this reaction. Explain how zeolites act as selective...
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19M.3.hl.TZ2.4c:
Explain the action of metals as heterogeneous catalysts.
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19M.3.hl.TZ2.4c:
Explain the action of metals as heterogeneous catalysts.
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19M.3.hl.TZ2.c:
Explain the action of metals as heterogeneous catalysts.
-
19M.3.sl.TZ2.4c:
Explain the action of metals as heterogeneous catalysts.
-
19M.3.sl.TZ2.4c:
Explain the action of metals as heterogeneous catalysts.
-
19M.3.sl.TZ2.c:
Explain the action of metals as heterogeneous catalysts.
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19N.3.sl.TZ0.3c:
Nanotubes are used to support the active material in nanocatalysts.
Explain why oxygen cannot be used for the chemical vapour deposition (CVD) preparation of carbon nanotubes.
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19N.3.sl.TZ0.3c:
Nanotubes are used to support the active material in nanocatalysts.
Explain why oxygen cannot be used for the chemical vapour deposition (CVD) preparation of carbon nanotubes.
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19N.3.sl.TZ0.c:
Nanotubes are used to support the active material in nanocatalysts.
Explain why oxygen cannot be used for the chemical vapour deposition (CVD) preparation of carbon nanotubes.
- 18N.3.sl.TZ0.2c.i: A zeolite is an alternative catalyst for this reaction. Explain how zeolites act as selective...
- 18N.3.sl.TZ0.2c.i: A zeolite is an alternative catalyst for this reaction. Explain how zeolites act as selective...
- 18N.3.sl.TZ0.c.i: A zeolite is an alternative catalyst for this reaction. Explain how zeolites act as selective...
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19M.3.hl.TZ1.4a:
Outline two differences between heterogeneous and homogeneous catalysts.
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19M.3.hl.TZ1.4a:
Outline two differences between heterogeneous and homogeneous catalysts.
-
19M.3.hl.TZ1.a:
Outline two differences between heterogeneous and homogeneous catalysts.
-
19M.3.sl.TZ1.4a:
Outline two differences between heterogeneous and homogeneous catalysts.
-
19M.3.sl.TZ1.4a:
Outline two differences between heterogeneous and homogeneous catalysts.
-
19M.3.sl.TZ1.a:
Outline two differences between heterogeneous and homogeneous catalysts.
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19N.3.sl.TZ0.3a:
Describe how a heterogeneous catalyst provides an alternative pathway for a reaction.
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19N.3.sl.TZ0.3a:
Describe how a heterogeneous catalyst provides an alternative pathway for a reaction.
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19N.3.sl.TZ0.a:
Describe how a heterogeneous catalyst provides an alternative pathway for a reaction.
- 19N.3.sl.TZ0.3b: Distinguish between heterogeneous and homogeneous catalysts, giving one difference.
- 19N.3.sl.TZ0.3b: Distinguish between heterogeneous and homogeneous catalysts, giving one difference.
- 19N.3.sl.TZ0.b: Distinguish between heterogeneous and homogeneous catalysts, giving one difference.
- 20N.3.sl.TZ0.4c: Zeolites can be used as catalysts in the manufacture of CNT. Explain, with reference to their...
- 20N.3.sl.TZ0.4c: Zeolites can be used as catalysts in the manufacture of CNT. Explain, with reference to their...
- 20N.3.sl.TZ0.c: Zeolites can be used as catalysts in the manufacture of CNT. Explain, with reference to their...