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4 years ago

At which point does the roller coaster have very little kinetic energy and very little potential energy ?

Chemistry

2 answers:

olga2289 [7]4 years ago

7 0

When it will move I hope this helps

Nana76 [90]4 years ago

6 0

When it would be on a flat area with no slope. and no movement

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A 0.907 mole sample of ideal gas at 12c occupies a volume of 4.25L. What is the pressure of gas?

mel-nik [20]

Pressure of the ideal gas=505.7kPa

Given:

No of moles=0.907mole

Temperature of the gas= $12^{\circ} \mathrm{C}$

Volume of the gas=4.25L

To find:

Pressure of the gas

<u>Step by Step Explanation: </u>

Solution:

According to the ideal gas equation

$P V=n R T$ and from this pressure is derived as

$P=\frac{n R T}{V}$

Where P=Pressure of the gas

V=Volume of the gas=4.25L

n=No of the moles=0.907mole

R=Gas constant=8.314 $J / m o l^{-1} K^{-1}$

T=Temperature of the gas= $12^{\circ} \mathrm{C}$ =273+12=285K

Substitute these known values in the above equation we get

$P=\frac{0.907 \times 8.314 \times 285}{4.25}$

$P=\frac{2149.13}{4.25}$

P=505.7kPa

Result:

Thus the pressure of the ideal gas is 505.7kPa

7 0

3 years ago

How does air pressure affect the boiling point of a liquid?

Agata [3.3K]

Answer:

D. Air pressure lowers the temperature of the liquid molecules.

3 0

3 years ago

Read 2 more answers

Which type of rection has the general formuial ab+cd

prisoha [69]

Double replacement. It is normally described as AB+CD=AD+CB.

Hope this helps!! (:

4 0

3 years ago

Read 2 more answers

Need help please please

MatroZZZ [7]

Answer:

1) 4

2) 1/9

3) 46.5

4) 5.8

Explanation:

Density= Mass/Volume

1) D=24/6=4

2) D=1/9=0.11

3) D=2000/43=46.5

4) D=75/13=5.8

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3 years ago

Heavy rains fill a reservoir, causing the dam that holds the water to break. As a result, the areas downstream are suddenly floo

Andreyy89

I believe that A is the answer.

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3 years ago