What happens when you increase the temperature of a reaction?
2 answers:
Answer: Option (D) is the correct answer.
more collisions occur and the time required for the reaction decreases.
Explanation:
When we increase the temperature of reactant molecules then there will occur an increase in the kinetic energy of molecules.
Also, K.E =
So, kinetic energy is directly proportional to the temperature. As a result, more number of collisions will take place between the molecules due to which there will be an increase in the rate of reaction.
Therefore, we can conclude that when you increase the temperature of a reaction then more collisions occur and the time required for the reaction decreases.
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Stoichiometry is “quantitative relationship” among the “reactants” and the “products” in a “chemical reaction”.
<u>Explanation</u>:
In stoichiometry “stoicheion” means element and “metron” means measure in Greek. The stoichiometric calculation depends upon “stoichiometric coefficients” in a “chemical equation” which can be explained as the “number of moles” of each substance (reactants or products). Stoichiometric calculation is done as follows:
For example reaction between nitrogen and hydrogen to form ammonia as
Here stoichiometric coefficients show that “one molecule of nitrogen” reacts with “three molecules of hydrogen” to form “two molecules of ammonia”. Multiplying Avogadro number to no of molecules in equation:
Taking molar masses into consideration:
Hence balanced equation gives stoichiometric coefficients which gives proportion by moles.