3.00 moles of helium gas (He) are in a container with a volume is 2.00 liters and a temperature is at 298 K. What is the approximate pressure in kilopascals?
Answers
Answer:
3718.628 kPa.
Explanation:
- We can use the general law of ideal gas: PV = nRT.
where, P is the pressure of the gas in atm (P = ??? atm).
V is the volume of the gas in L (V = 2.0 L).
n is the no. of moles of the gas in mol (n = 3.0 mol).
R is the general gas constant (R = 0.0821 L.atm/mol.K),
T is the temperature of the gas in K (T = 298.0 K).
∴ P = nRT/V = (3.0 mol)(0.0821 L.atm/mol.K)(298.0 K)/(2.0 L) = 36.7 atm.
- To convert from atm to kPa:
∵ 1.0 atm = 101.325 kPa.
∴ P = (36.7 atm)(101.325 kPa/1.0 atm) = 3718.628 kPa.
Related Questions
Does every rock go through the rock cycle, from igneous to sedimentary to metamorphic each time around??? Please answer
Why does the evaporation of sweat cool your body on a warm day
Coal, oil, and natural gas A.are renewable natural resources. B.are in very short supply for consumers. C.release carbon dioxide when they are burned. D.are clean fuels that contribute little to pollution.
Which element melts at room temperature?
Answers
Answer:
An atom or, to be more specific, a helium atom.
Explanation:
This is a model of an atom. You can tell by the nucleus made only out of neutrons (the balls with no + or - sign) and protons (the balls with the + sign) and by the electrons (the balls with the - sign) circling around the nucleus.
This is a model of not just any atom, but a helium atom. An atom is defined by it's number of protons. For example, an atom with 1 proton is always hydrogen and an atom with 6 protons is always carbon. As you can see, this model has 2 protons. Any atom with 2 protons is a helium atom. This is a model of a helium atom.
I hope this helps. Feel free to ask my any questions if you are confused. Happy studying. Enjoy your thanksgiving. :)
The storm was deep and shallow.
The storm was deep and turbulent.
The storm was calm and shallow.
The storm was calm and deep.
Answers
The fact that the snowflakes were heavily rimed shows that the storm was deep and turbulent.
What is a turbulent storm?
A turbulent storm is composed of chaotic air movements. A turbulent storm may lead to a lot of damage in its path owing to the force of the advancing storm.
For a deep and turbulent storm, the image taken by the high resolution camera of the environmentalist will show the snowflakes were heavily rimed.
Learn more about turbulent storm: brainly.com/question/12652309
Answer: B. The storm was deep and turbulent
Explanation: I just took the test
Answers
- - Why?
Because this is a good example of a cell wall, and it is commonly used in most science lessons (in my school atleast)
✡Hope this helps✡
Answers
Answer:
it's a river flowing into the sea
Explanation:
i had it on a quiz for k12 on god it's the good one have a good day
Answers
Answer:
3.72L
Explanation:
Given parameters:
Initial volume V₁ = 3.9L
Condition = STP
Final temperature T₂ = -550°C
Final pressure P₂ = 880mmHg
Unknown:
Final volume V₂ = ?
Solution.
At standard temperature and pressure(STP), the:
Pressure = 1atm = 760mmHg
Temperature = 273K
Therefore, P₁ = 760mmHg
T₁ = 273K
The general gas law, is best to solve this problem. It is mathematically given as:
Let us take the units to the appropriate one;
-550°C = 273 + (-550) = -277K
Input the variables;
V₂ = 3.72L