Answer:
Explanation:
Activation energy is the minimum amount of energy required to begin a reaction.
Reactants have their own certain amount of energy which is known as internal energy and represented by . A reaction involves an energy barrier that needs to be crossed by the reactants in order to form the products. This energy barrier is the activation energy.
A reaction that does not have activation energy will not take place at all.
Therefore, the statement which defines activation energy is that it is the difference between reactant energy and maximum energy.
Answer:
<h2>The answer is 1.48 L</h2>Explanation:
In order to find the original volume we use the same for Boyle's law which is
where
P1 is the initial pressure
P2 is the final pressure
V1 is the initial volume
V2 is the final volume
Since we are finding the original volume
From the question
P1 = 172 kPa = 172000 Pa
P2 = 85 kPa = 85000 Pa
V2 = 3 L
We have
We have the final answer as
<h3>1.48 L</h3>Hope this helps you
Answer : 17.12 g
Explanation:
= elevation in boiling point
= boiling point elevation constant
m= molality
given
Molar mass of solute = 46.0
Weight of the solvent = 150.0 g = 0.15 kg
Putting in the values
x = 17.12 g