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According to collision theory what best explains how a catalyst increases the reaction rate for a chemical reaction?
A catalyst decreases the threshold energy for a chemical reaction. A catalyst decreases energy required for two particles to react. A catalyst lowers the amount of energy needed to reach the transition state.
What is the relation between transition probability and cross section?
The transition probability is the likelihood that a particle will change from one state to another during a collision, whereas the cross section represents the effective area that the particle presents to a collision. The transition probability is related to the cross section by the formula: transition probability = cross section * particle flux, where the particle flux is the rate at which particles are incident on a target.
What is the relation of a gram to a curie?
A curie is a unit of measurement for radioactivity, while a gram is a unit of mass. There is no direct relationship between the two as they measure different properties.
How does a catalyst speed at low temperatures?
A catalyst speeds up chemical reactions at low temperatures by providing an alternative reaction pathway with a lower activation energy. This allows more reactant molecules to have sufficient energy to undergo the reaction, even when the temperature is lower. Additionally, catalysts can stabilize transition states, enhancing the likelihood of successful collisions between reactants. As a result, the reaction rate increases without the catalyst being consumed in the process.
What is the difference between Ziegler Natta and metallocene catalyst?
Ziegler-Natta catalysts are heterogeneous catalysts composed of transition metals and organometallic compounds, while metallocene catalysts are homogeneous catalysts consisting of a single transition metal atom sandwiched between two cyclopentadienyl ligands. Metallocene catalysts are more precise and produce polymers with narrower molecular weight distribution compared to Ziegler-Natta catalysts.
What is the relation between steric hindrance and reactivity?
The structures and properties can be used to describe the relation between a steric hindrance and reactivity.
What is difference between a phase and a phase transition?
a phase is a region with homogeneous (uniform) properties and a conversion between states is called a "phase transition"
The relation between a Catalyst and an Enzyme?
Enzymes are proteins that catalyze (speed up) reactions. Catalysts (in the pure sense) tend to be compounds.
What is the difference between a homogeneous catalyst and a heterogeneous catalyst?
The difference between a homogeneous and a heterogeneous catalyst is that in a heterogeneous catalyst, it is in a different phase from the reactants. However, in a homogeneous catalyst, it is in the same phase as the reactants.
What are semiametals?
As we look across the periodic table from left to right, we see metals on the left, transition metals through the middle and nonmetals on the right. What we left out was that group of elements between the transition metals and the nonmetals, and these semimetals are called metalloids.Metaloids have properties that are in between those of transition metals and nonmetals, or perhaps properties that are some combination of those of transition metals and nonmetals. The elements in this group include boron, silicon, germanium, arsenic, antimony and tellurium.
What is the main difference between a heterogeneous catalyst and a homogeneous catalyst?
The heterogeneous catalyst is not mixed with the reactants.
What is the relationship between sample and population?
From a sample of a population, the properties of the population can be inferred.
What is the relation between amplitude and period?
There is no direct relation between amplitude and period. The amplitude of a wave refers to the maximum displacement from equilibrium, while the period of a wave is the time it takes for one complete cycle to occur. They are independent properties of a wave.
How do the properties of the transition element compare with those of the alkali metals and alkaline-earth metals?
Transition state metals include a wide variety of metals; they include iron, gold, and Mercury which all have strikingly different properties (hard, soft, and liquid, for example). Nonetheless, a comparison can be made between the transition state metals and the alkali and alkaline earth metals; transition state metals are not as chemically active (some transition state metals are actually inert, such as platinum).
What is the Difference between relation schema and relation instance?
difference between relation sehema and relation instance in dbms
Where do you find the transition metals on the periodic table?
Transition metals are found in the center block of the periodic table, specifically in groups 3-12. They are known for their ability to transition between different oxidation states, which gives them their name. Transition metals have unique properties such as forming colorful compounds and acting as catalysts in chemical reactions.
According to collision theory what best explains how a catalyst increases the reaction rate for a chemical reaction?
A catalyst decreases the threshold energy for a chemical reaction. A catalyst decreases energy required for two particles to react. A catalyst lowers the amount of energy needed to reach the transition state.
