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-BARSIC- [3]
4 years ago
14

Explain how pumping air into a bicycle tire increases the presssure

Chemistry
1 answer:
Genrish500 [490]4 years ago
8 0

Explanation:

When air is pumped into a tire then tire has a fixed volume and each time the pump is pressed more number of air molecules will enter into the tire.

Due to increase in number of air molecules there will be increase in pressure of tire.

As increase in pressure will be visible because the tire will pump up or increase in size due to increase in pressure.

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<em>heterogeneous mixture is a mixture that is non-uniform and contains smaller component parts.</em>

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which equation is setup correctly to determine the volume of a 1.5 mol sample of oxygen gas at 22 degrees Celsius and 100 kPa
rjkz [21]
Hello!

We have the following data:


v (volume) = ? (in L)
n (number of mols) = 1,5 mol
T (temperature) = 22 ºC 
First let's convert the temperature on the Kelvin scale, let's see:
TK = TºC + 273,15
TK = 22 + 273,15
TK = 295,15

P (pressure) = 100 kPa → P = 100000 Pa → P ≈ 0,987 atm
R (gas constant) = 0,082 atm.L / mol.K

<span>We apply the data above to the Clapeyron equation (gas equation), let's see:

</span>P*V = n*R*T

0,987*V = 1,5*0,082*295,15

0,987V = 36,30345

V =  \dfrac{36,30345}{0,987}

\boxed{\boxed{V \approx 36,78\:L}} \end{array}}\qquad\checkmark

I hope this helps. =)
4 0
4 years ago
Classify each of the following as an observation, a law, or a theory. (a) All matter is made of tiny, indestructible particles c
umka21 [38]

Explanation:

An observation is defined as the process which explains how it is happening (qualitative) and and quantitatively able to measure something about the process.

A law is defined as a verified statement that will remain true under the mentioned circumstances as it is based on the past observations that are carefully tested.

A theory is defined as the explanation of an aspect of natural world that can be tested, modified or rejected as a result of further experiments.

Hence, the given statements are classified as follows.

(a) All matter is made of tiny, indestructible particles called atoms - Theory

(b) When iron rusts in a closed container, the mass of the container and its contents does not change - Observation

(c) In chemical reactions, matter is neither created nor destroyed - Law

(d)  When a match burns, heat is evolve - Observation

8 0
4 years ago
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