A: Trial 1, because the average rate of the reaction is lower.
The rate of reaction is the speed with which reactants are converted into products. It is also the rate at which reactants disappear and products appear. The higher the rate of reaction, the greater the amount of product formed in a reaction.
If we look at the graph, we will realize that trial 1 produces a lesser amount of product than trial 2. This implies that the average rate of the reaction in trial 1 is lower than in trial 2.
Lower average rate of reaction implies lower concentration of the reactants since the rate of reaction depends on the concentration of reactants.
Hence trial 1 has a lower concentration of reactants because the average rate of the reaction is lower.
The answer is b
Explanation:
Answer: the answer is X.
Explanation:
Think of it as a graph with potential and kinetic energy
Answer: The time after which the concentration of 
fall to 12.5% of its initial value is 26.2 hours
Explanation:
Expression for rate law for first order kinetics is given by:
where,
k = rate constant
t = age of sample
a = let initial amount of the reactant = 100
a - x = amount left after decay process = 12.5
a) for completion of half life:
Half life is the amount of time taken by a radioactive material to decay to half of its original value.
b) for concentration to fall to 12.5 % of initial value
The time after which the concentration of fall to 12.5% of its initial value is 26.2 hours
Answer:
Neutralisation involves an acid reacting with a base or an alkali, forming a salt and water.
