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What is the rate constant for formation of ethylene oxide?
The rate constant for the formation of ethylene oxide can vary depending on the reaction conditions, such as temperature, pressure, and catalyst used. It is typically determined experimentally through kinetic studies for the specific reaction being studied.
What shows changes that take place during a chemical reaction?
Evidence of a chemical reaction includes color change, formation of precipitate, evolution of gas, and changes in temperature. These changes can indicate that new substances are being formed through the rearrangement of atoms.
What effects the rate constant of a reaction?
The temperature of the system
Explain how you can tell whether a chemical reaction has taken place?
A chemical change or reaction happens if new substances are formed. there may be a change in temperature so the reaction mixture may heat up or cool down. it also might change colour, give off bubbles of gas or fumes and you also might hear fizzing or a gas might explode.
What is the only sure evidence for a chemical reaction?
The only sure evidence for a chemical reaction is the formation of new substances with different properties from the original reactants. This can be observed through changes in color, odor, temperature, or the production of a precipitate or gas.
When does q equal delta h in a chemical reaction?
Q equals delta H in a chemical reaction when the reaction is at constant pressure and the temperature remains constant.
How can you know this is a chemical reaction?
Evidence of a chemical reaction include the following: formation of a precipitate formation of a gas change in temperature change in color
How does the rate constant change with temperature in a chemical reaction?
The rate constant of a chemical reaction generally increases with temperature. This is because higher temperatures provide more energy for molecules to react, leading to a faster reaction rate.
What is the relationship between the rate constant and temperature in a chemical reaction?
The rate constant of a chemical reaction generally increases with temperature. This is because higher temperatures provide more energy for molecules to react, leading to a faster reaction rate.
When is q equal to delta h in a chemical reaction?
Q is equal to delta H in a chemical reaction when the reaction is at constant pressure and temperature.
What is the 2nd observable characteristic of a chemical reaction?
There are many observable characteristics of a chemical reaction. They are: change in temperature formation of a precipitate change in color formation of a gas formation of a new odor disappearance of a solid
What factors influence the rate constant in a chemical reaction?
The rate constant in a chemical reaction is influenced by factors such as temperature, concentration of reactants, presence of catalysts, and the nature of the reactants and their physical state.
How does temperature affect the rate constant in a chemical reaction?
Temperature affects the rate constant in a chemical reaction by increasing it. As temperature rises, molecules move faster and collide more frequently, leading to a higher likelihood of successful reactions. This relationship is described by the Arrhenius equation, which shows that the rate constant is exponentially dependent on temperature.
How an increase in temperature change the rate constant of a chemical reaction?
An increase in temperature generally increases the rate constant of a chemical reaction due to more frequent and energetic collisions between molecules, leading to a higher probability of successful reactions. This is described by the Arrhenius equation, which states that the rate constant of a reaction increases exponentially with temperature.
What are the sings of chemical reactions?
The signs of a chemical reaction include change in temperature, change in color, formation of gas, formation of a precipitate, disappearance of a solid, formation of a new odor.
What can be evidence of a chemical reaction?
Evidence of a chemical reaction can include formation of a gas, color change, temperature change, formation of a precipitate, or production of light. These observable changes indicate a transformation of substances into new molecules with different properties.
What are the four occurrences indicate a chemical reaction has occurred?
A chemical reaction can result in any or all of the following: - a change in temperature (up or down) - a change in color - a smell that wasn't there before - the formation of bubbles (indicating the production of a gas) - the formation of a precipitate
