In chemistry what contains the smallest amount of matter
1 answer:
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Answer:
The new pressure is 44.4 kPa.
Explanation:
We have,
Initial volume,
Initial pressure,
It is required to find the new pressure when the volume is increased to 50 ml. The relationship between pressure and volume is known as Boyle's law.
is final pressure
So, new pressure is 44.4 kPa.
Answer :
The time taken by the reaction is 19.2 seconds.
The order of reaction is, second order reaction.
Explanation :
The general formula to determine the unit of rate constant is:
Unit of rate constant Order of reaction
0
1
2
As the unit of rate constant is . So, the order of reaction is second order.
The expression used for second order kinetics is:
where,
k = rate constant =
t = time = ?
= final concentration = 0.97 M
= initial concentration = 2.48 M
Now put all the given values in the above expression, we get:
Therefore, the time taken by the reaction is 19.2 seconds.