Pressure belts affects the climate of an area in such a way that Low pressure belt produces rain and storms and weather conditions that are unstable.
<u>Explanation:</u>
It is the movement of air that creates difference in the pressure and this is called as Pressure gradients. The patterns of pressure that exists over a period of time in an area is called as pressure belt. The pressure belt or wind belt highly depends on the temperature of an area.
Pressure belts can affect the climatic conditions of an area greatly. Air when rises it can create lower pressure and air when shrinks it can result in higher pressure. When the pressure is low then it can create a weather condition in an area which is unstable. It can create rain or storm.
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Answer:
vHe / vNe = 2.24
Explanation:
To obtain the velocity of an ideal gas you must use the formula:
v = √3RT / √M
Where R is gas constant (8.314 kgm²/s²molK); T is temperature and M is molar mass of the gas (4x10⁻³kg/mol for helium and 20,18x10⁻³ kg/mol for neon). Thus:
vHe = √3×8.314 kgm²/s²molK×T / √4x10⁻³kg/mol
vNe = √3×8.314 kgm²/s²molK×T / √20.18x10⁻³kg/mol
The ratio is:
vHe / vNe = √3×8.314 kgm²/s²molK×T / √4x10⁻³kg/mol / √3×8.314 kgm²/s²molK×T / √20.18x10⁻³kg/mol
vHe / vNe = √20.18x10⁻³kg/mol / √4x10⁻³kg/mol
<em>vHe / vNe = 2.24</em>
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I hope it helps!
Answer:
2.03 atm
Explanation:
Number of moles of He = 1g/4g/mol = 0.25 moles
Number of moles of F2 = 14.0g/38 g/mol = 0.37 moles
Number of moles of Ar=19.0g/40g/mol = 0.48 moles
Total number of moles = 0.25 + 0.37 + 0.48 = 1.1 moles
From;
PV=nRT
P= pressure of the gas mixture
V= volume of the gas mixture
n= total number of moles of the gas mixture
R= gas constant
T= temperature of the gas mixture
P= nRT/V
P= 1.1 × 0.082 × 293/13
P= 2.03 atm
This problem is providing us with the rate constant and initial mass for radon's decay. Thus, several questions regarding how much it is left over after specific times are proposed and solved along this.
<h3>Radioactive decay</h3>
In chemistry, radioactive decay is a process whereby an unstable atomic nucleus loses energy by radiation, and therefore its mass decreases as the time goes by.
In such a way, one can use the following equation for the required questions:
Where A is how much is left over, Ao the initial amount, t the elapsed time and k the rate constant. Thus, we can proceed as follows:
(a) we just plug in the 2.96 days:
(b) we need to convert 46.4 hours to days:
(c) we assume this is a first-order reaction so we use its definition of half-life as:
(d) if five half-lives have taken place, the radon which is left over turns out to be:
Learn more about radioactive decay: brainly.com/question/1439925