Which explanation best compares the movement of particles in the three states of matter?
1 answer:
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Answer : The volume of 1 mole of and
gases are the same.
Solution: Given,
Moles of = 1 mole
Moles of = 1 mole
Moles of = 2 mole
Formula used for ideal gas is :
P V = n R T
According to the question, the gases are at standard temperature and pressure. So, the volume of gases only depends on the number of moles. This means that the higher the number of moles, higher will be the volume of gas.
The moles of are more than the moles of
and
. So, the volume of
will be more.
And the moles of and
are equal. Therefore, their volumes are also equal.
Therefore, the best option is the volume of 1 mole of and
gases are the same.
Answer : As given in the question the concentration of acid and base are in equimolar proportion so,
the simple net ionic reaction that the system is undergoing can be given as,
we can now calculate the total number of moles reacting in the species as,
(30 mL) X (1L/1000ML) X 0.150 moles =
moles.
Now, we know the specific heat of water as 4.186 J/g °C.
Now considering the total volume of the product as 60 mL or 60 g (as it is water it can be g or mL) hence, ΔC is 2.5 C.
Now converting these into joules = 4.186 J/g °C X 2.5 X 60 = 627.9 Joules.
On dividing this we get 627.9 Joules / moles = 140 KiloJoules/mole.
So the answer is 140 KJ/M.
the simple net ionic reaction that the system is undergoing can be given as,
we can now calculate the total number of moles reacting in the species as,
(30 mL) X (1L/1000ML) X 0.150 moles =
Now, we know the specific heat of water as 4.186 J/g °C.
Now considering the total volume of the product as 60 mL or 60 g (as it is water it can be g or mL) hence, ΔC is 2.5 C.
Now converting these into joules = 4.186 J/g °C X 2.5 X 60 = 627.9 Joules.
On dividing this we get 627.9 Joules /
So the answer is 140 KJ/M.