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3 years ago

What causes gas particles to collide with the walls of their containers?

Chemistry

1 answer:

blondinia [14]3 years ago

5 0

Answer:

Kinetic energy

Explanation:

The kinetic energy of a particle is directly proportional to the temperature of it. An increase in temperature increases the speed in which the molecules move, causing t[he particles to collide with the walls of their containers.

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Describe the conversions from potential to kinetic energy, or kinetic to potential energy, as a toy car rolls down a ramp.

DiKsa [7]

Answer:

When an object falls, its gravitational potential energy is changed to kinetic energy. You can use this relationship to calculate the speed of the object's descent. Gravitational potential energy for a mass m at height h near the surface of the Earth is mgh more than the potential energy would be at height 0.

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2 years ago

I need help with this pleae

pantera1 [17]

Depositional landforms are the visible evidence of processes that have deposited sediments or rocks after they were transported by flowing ice or water, wind or gravity. Examples include beaches, deltas, glacial moraines, sand dunes and salt domes

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2 years ago

The gas in an engine cylinder is compressed until it has a volume of 0.045 liter and an absolute pressure of 28 atmospheres. If

Hatshy [7]

$7.7 \times 10^{2} \; \text{K}$ .

<h3>Explanation</h3>

Units of each quantity:

<em>P</em> = 28 atm;
<em>V</em> = 0.045 L;
<em>n</em> = 0.020 mol;

Ideal gas constant:

$R = 0.0820573 \;\text{L} \cdot \text{atm} \cdot \text{K}^{-1} \cdot \text{mol}^{-1}$ .

Apply the ideal gas law:

$T = \dfrac{P \cdot V}{n \cdot R} = \dfrac{{\bf 28} \; \text{atm} \times {\bf 0.045} \;\text{L} }{{\bf 0.020}\; \text{mol} \times {\bf 0.0820573} \;\text{L} \cdot \text{atm} \cdot \text{K}^{-1} \cdot \text{mol}^{-1}} = {\bf 767.76} \; \text{K}$ .

All data given in this question come with two significant figures. Round the value of <em>T</em> to two significant figures:

$T = 767.76 \;\text{K} = 7.7 \times 10^{2} \; \text{K}$ .

7 0

2 years ago

Read 2 more answers

4-Methylphenol, CH3C6H4OH (pKa 10.26), is only slightly soluble in water, but its sodium salt, CH3C6H4O-Na , is quite soluble in

Vinil7 [7]

Explanation:

We know that more is the $pK_{a}$ value, weaker will be the acid. Also, an acid completely dissociates into ions in an aqueous base solution when $pK_{a}$ of conjugate acid of base is greater than acid.

4-methylphenol $(CH_{3}C_{6}H_{4}OH)$ ( $pK_{a} = 10.26$ ) is quite soluble in its sodium salt. In NaOH, the dissociation will be as $Na^{+}$ and $OH^{-}$ ions as NaOH is a strong base.

Therefore, 4-methylphenol will readily dissolve in NaOH solution.

As, $NaHCO_{3}$ is not a strong base but as 4-Methylphenol forms a sodium salt hence, it will have a low solubility as compared to NaOH.

Whereas $Na_{2}CO_{3}$ is not a base but when dissolved in water it shows basic character as it produces NaOH (strong base) and $H_{2}CO_{3}$ (weak acid). As a result, the solution gets basic. Hence, 4-methylphenol will readily dissolve in $Na_{2}CO_{3}$ .

4 0

3 years ago

Pls explain how the energy of a marble is transformed as it rolls down a ramp.

Alex73 [517]

Answer:

Energy is not created but transformed meaning the energy just transformed into a different type meaning at all points of the ramp the energy stays the same because all of its energy is just transformed into kinetic energy.

Explanation:

3 0

3 years ago