Table of Contents
Which will increase the reaction rate?
In general, increasing the concentration of a reactant in solution, increasing the surface area of a solid reactant, and increasing the temperature of the reaction system will all increase the rate of a reaction. A reaction can also be sped up by adding a catalyst to the reaction mixture.
What factor affects the rate of chemical reaction in kindling is used to start a fire?
The small pieces of kindling will ignite much easier than large pieces of wood. The smaller the particle size, the faster the chemical reaction.
What is the order of a reaction?
The Order of Reaction refers to the power dependence of the rate on the concentration of each reactant. Thus, for a first-order reaction, the rate is dependent on the concentration of a single species. For simple one-step reactions, the order and molecularity should have the same value.
What is the slope of a first-order reaction?
For a first-order reaction, a plot of the natural logarithm of the concentration of a reactant versus time is a straight line with a slope of −k. For a second-order reaction, a plot of the inverse of the concentration of a reactant versus time is a straight line with a slope of k.
What does reaction rate mean?
reaction rate, in chemistry, the speed at which a chemical reaction proceeds. It is often expressed in terms of either the concentration (amount per unit volume) of a product that is formed in a unit of time or the concentration of a reactant that is consumed in a unit of time.
Why does a candle burn more rapidly when placed in an open jar than in air?
Putting the jar over the candle keeps oxygen from outside the jar from getting in. So, when that oxygen is used up, the reaction can’t keep going. Running out of oxygen makes the flame go out.
What conditions must be met in order for a chemical reaction to occur Brainly?
Answer: Molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. Molecules must collide with the proper orientation. A collision that meets these two criteria, and that results in a chemical reaction, is known as a successful collision or an effective collision.
What does 2nd order reaction mean?
Definition of second-order reaction : a chemical reaction in which the rate of reaction is proportional to the concentration of each of two reacting molecules — compare order of a reaction.
What is third order reaction?
Definition of third-order reaction : a chemical reaction in which the rate of reaction is proportional to the concentration of each of three reacting molecules — compare order of a reaction.
Why do we use wire core Wick in candles?
We simply want to provide our customers with a higher level of safety. These are the most commonly used wick type for many types of candles. They may be used for votives, pillars, and in gel candles. The wire core in the wick helps the wick to remain standing straight while the candle is being poured and when the candle is lit.
What are 4 factors that increase the rate of reaction?
4 main factors affect the rate of chemical reaction: a concentration or pressure change, temperature change, the physical state, or a catalyst. What are 4 ways to change the rate of reaction? Increase of temp Increase of surface area Increase of concentration The presence of an inhibitor or catalyst
How does temperature affect the rate of reaction?
The rate of reaction is affected by temperature,concentration,particle size, and the use of a catalyst. 1. Temperature (An increase in temp causes there to be an increase in kinetic energy. This results in an increase in collision frequency and therefore, an increase in rate of reaction.) 2.
How big should the Wick be on a gel candle?
Can be used in votives, pillars, containers, and gel candles. Each wick has been cut to the specified length, primed with a high melt point wax (212°F) and has been crimped with a 20mm diameter x 10mm tall tab (except HTP-1212 which has a 20mm diameter x 6mm tab.) *These recommendations are based upon the wick being used in a base paraffin wax.