Considering the Boyle's law, the volume of the balloon at the higher altitude is 7.5 L.
The gas laws are a set of chemical and physical laws that allow determining the behavior of gases in a closed system. The parameters evaluated in these laws are pressure, volume, temperature and moles.
Boyle's law is one of the gas laws that states that the pressure of a gas in a closed container is inversely proportional to the volume of the container, when the temperature is constant. In other words, if the pressure increases, the volume decreases; while if the pressure decreases, the volume increases.
Boyle's law is expressed mathematically as:
P× V = k
In this law then two variables are related: pressure and volume, so it is assumed that the temperature of the gas and the number of molecules of the gas are constant.
Studying an initial state 1 and a final state 2 is fulfilled:
P1× V1= P2× V2
In this case, you know:
- P1= 1 atm
- V1= 6 L
- P2= 0.80 atm
- V2= ?
Replacing:
1 atm× 6 L= 0.80 atm× V2
Solving:
<u><em>V2= 7.5 L</em></u>
Finally, the volume of the balloon at the higher altitude is 7.5 L.
Learn more:
I THINK this is the answer: 4809.35999999786. (found it on a website)
Explanation:
The given data is as follows.
= 0.042 M, for
According to the given situation acts as a base.The reaction equation will be as follows.
Relation between and are as follows.
=
=
Also,
Let us take = x
So,
x =
=
pOH = - log
= - log ()
= 4.99
As it is known that pH + pOH = 14
so, pH + 4.99 = 14
pH = 9.01
Thus, we can conclude that pH of the solution is 9.01.
Answer: Sugar Solution
Explanation:
When a sugar solution and water, top, are separated by a semipermeable membrane, The solution's large sugar molecules can't pass through the membrane into the water. Small water molecules move through the membrane until equilibrium is established, at the bottom which is a example of osmosis :).
57 degrees celcius is equal to 330 degrees kelvin
67.88 kPa is equal to 67880 Pa
85.3 liters is equal to 0.0853 m^3
Now, the equation we will use to solve this question is:
PV = nRT where:
P is the pressure of gas = 67880 Pa
V is the volume of gas = 0.0853 m^3
n is the number of moles we are looking for
R is the gas constant = 8.31441 J K-1<span> mol</span><span>-1
T is the temperature of gas = 330 degrees kelvin
Substitute with the givens in the above equation to get n as follows:
n = (PV) / (RT)
n = (67880*0.0853) / (8.31441*330)
n = 2.11 moles</span>