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level: Factors affecting rate of reaction

Questions and Answers List

level questions: Factors affecting rate of reaction

QuestionAnswer
The minimum amount of energy required for a chemical reaction to occur.Activation Energy.
What is the term for the minimum energy needed for a chemical reaction to take place?Activation energy.
The speed at which a chemical reaction occurs.Rates of Reaction
How is the speed of a chemical reaction characterized?The speed of a chemical reaction is known as the rate of reaction.
The substances that undergo a chemical reaction.Reactant Particles.
What are the substances involved in a chemical reaction called?Reactant particles.
Instances where reactant particles come into contact.Collisions.
What is it called when reactant particles come into contact with each other?Collisions.
The number of collisions occurring per unit of time.Frequency of Collisions
What does the term "frequency of collisions" refer to in the context of a chemical reaction?It denotes the number of collisions happening per unit of time.
The amount of energy carried by colliding reactant particles.Energy of Collisions
What does the term "energy of collisions" represent in a chemical reaction?It signifies the amount of energy carried by reactant particles when they collide.
Rates of reaction increase when the frequency and/or energy of collisions between reactant particles increases.Relationship Between Collision Characteristics and Rates of Reaction
How does the frequency and energy of collisions impact the rate of a chemical reaction?Rates of reaction increase when the frequency and/or energy of collisions between reactant particles increases.
Conditions or variables that can influence the speed at which a chemical reaction proceeds.Factors Affecting Rate of Reaction.
What are the conditions or variables that can influence the speed of a chemical reaction known as?Factors affecting the rate of reaction.
The degree of hotness or coldness of a substance, which can significantly impact the rate of a chemical reaction.Temperature.
Which factor can affect the rate of a chemical reaction by altering the degree of hotness or coldness?Temperature.
The ratio of the surface area of a solid reactant to its volume, influencing the rate of reaction.Surface Area to Volume Ratio
What is the surface area to volume ratio of a solid reactant a factor of?It is a factor influencing the rate of reaction.
The amount of a substance present in a given volume, affecting the rate of reaction.Concentration.
What factor is influenced by the amount of a substance in a given volume?Concentration.
The force applied over an area, impacting the rate of reaction in gaseous systems.Pressure.
In gaseous systems, what factor can influence the rate of reaction by the force applied over an area?Pressure.
Different factors, such as temperature, surface area to volume ratio, concentration, and pressure, can affect the rate of a chemical reaction.Relationship Between Factors and Rate of Reaction
What is the relationship between factors like temperature, surface area to volume ratio, concentration, and pressure, and the rate of a chemical reaction?These factors can affect the rate of a chemical reaction.
The relationship between the temperature of a reaction and its rate, where an increase in temperature generally leads to a higher rate of reaction.Temperature and Rate of Reaction
How does an increase in temperature generally affect the rate of a chemical reaction?It leads to a higher rate of reaction.
The energy of motion; when referring to particles, it indicates the energy associated with their movement.Kinetic Energy.
What type of energy do particles gain when the temperature of a reaction increases?Kinetic energy.
Instances where reactant particles come into contact with each other.Collisions.
What happens to the frequency of collisions between reactant particles when the temperature of a reaction increases?The frequency of collisions increases.
The relationship where an increase in the kinetic energy of particles, due to higher temperature, results in more frequent and energetic collisions.Kinetic Energy and Collisions
How does an increase in kinetic energy, caused by higher temperature, influence collisions between reactant particles?It leads to more frequent and energetic collisions.
The positive correlation indicating that as temperature rises, the rate of reaction tends to increase.Relationship Between Temperature and Rate
What is the general relationship between the temperature of a reaction and its rate?As temperature rises, the rate of reaction tends to increase.
The relationship between the surface area of solid reactants and the rate of reaction, where an increase in surface area generally leads to a higher rate of reaction.Surface Area and Rate of Reaction
How does the surface area of solid reactants affect the rate of reaction?An increase in surface area generally leads to a higher rate of reaction.
The process of breaking large pieces of solid into smaller pieces.Crushing
What effect does crushing a solid have on its surface area?It increases the surface area.
The ratio of the exposed surface area of an object to its volume.Surface Area : Volume Ratio
Why do smaller pieces of a solid have a higher surface area : volume ratio than larger pieces?Smaller pieces have the same volume and mass but more surface area than larger pieces.
The relationship where an increase in the surface area of solid reactants results in more surface area available for collisions with other reactant particles.Collisions and Surface Area
How does an increase in surface area influence collisions between solid reactant particles and other reactant particles?It provides more surface area for collisions, leading to more frequent collisions.
The positive correlation indicating that as the surface area of solid reactants increases, the rate of reaction tends to increase.Relationship Between Surface Area and Rate
What is the general relationship between the surface area of solid reactants and the rate of reaction?As the surface area increases, the rate of reaction tends to increase.
The relationship between the concentration of a solution and the rate of a chemical reaction, where an increase in concentration generally leads to a higher rate of reaction.Concentration and Rate of Reaction
How does the concentration of a solution affect the rate of reaction?An increase in concentration generally leads to a higher rate of reaction.
A homogeneous mixture of two or more substances, where one substance (the solute) is dissolved in another (the solvent).Solution
In the context of chemical reactions, what does the term "solution" refer to?A homogeneous mixture of substances where a solute is dissolved in a solvent.
The process of adding more solute to a solution or reducing the amount of solvent, leading to a higher concentration.Concentration Increase
How does an increase in concentration affect the number of particles in a solution?It increases the number of particles in the same amount of space.
The closeness of particles in a solution, influenced by concentration .Particle Proximity
How does an increase in concentration affect the proximity of particles in a solution?It causes the particles to be closer together.
The relationship where an increase in concentration results in more particles in proximity, leading to more frequent collisions and a higher rate of reaction.Collisions and Concentration
Why does an increase in concentration lead to a higher rate of reaction?It causes more frequent collisions between particles in the solution.
The relationship between the pressure of gases in a reaction and the rate of the chemical reaction, where an increase in pressure generally leads to a higher rate of reaction.Pressure and Rate of Reaction
How does the pressure of gases affect the rate of a chemical reaction?An increase in pressure generally leads to a higher rate of reaction.
The force exerted by a gas per unit area of the container walls, measured in units such as pascals (Pa) or atmospheres (atm).Gas Pressure
What is gas pressure?The force exerted by a gas per unit area of the container walls.
The number of collisions between reactant particles in a given time period.Collision Frequency
In the context of a reaction involving gases, how does an increase in pressure affect collision frequency?It increases the collision frequency.
The closeness of gas particles in a reaction, influenced by pressure.Particle Proximity and Pressure
How does an increase in pressure affect the proximity of gas particles?It causes the gas particles to be closer to each other.
The inverse relationship between the volume and pressure of a gas, described by Boyle's Law.Volume and Pressure
What is Boyle's Law, and how does it relate to the pressure of gases?Boyle's Law states that the volume of a gas is inversely proportional to its pressure at constant temperature. Increasing pressure decreases volume, and vice versa.