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1 year ago

Which is an aspect of the kinetic-molecular theory and can be used to explain the compressibility of plasma

1 answer:

4 0

The answer choice which represents an aspect of the kinetic-molecular theory and can be used to explain compressibility of plasma is; Particles move independently of one another and are widely spaced.

<h3>What is the kinetic-molecular theory?</h3>

The kinetic-molecular theory in discuss postulates about the states of matter.

Also, it is built upon the idea that matter is composed of tiny particles that are constantly in motion.

Hence, the theory is explanatory of the observable properties and behaviours of solids, liquids and gases and hence, explains the compressibility of plasma.

Remarks;

Particles move independently of one another and are widely spaced.
Particle kinetic energy increases with increasing temperature.
Particles exert no attractive or repulsive force on one another.
Particles always move even when they have fixed positions.

Read more on kinetic molecular theory;

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A solution containing 60 grams of nano3 completely dissolved in 50. Grams of water at 50°c is classified as being

Igoryamba

Answer:

A solution containing 60 grams of nano3 completely dissolved in 50. Grams of water at 50°c is classified as being supersaturaded

Explanation:

This question is about solubility.

Regarding solubility, the solutions may be classified as:

Unsaturated: the concentration is below the maximum concentration permited at the given temperature.

Saturated: the concentration is the maximum permitted at the given temperature, under normal conditions.

Supersaturated: the concentration has overcome the maximum permitted at the given temperature. This is possible only under special conditions and is a very unstable state.

Each substance has its own, unique solubility properties. So, in order to tell the state of the solution you need to compare with either solubility tables, or solubility curves; or run you own experiments.

In internet you can find the solubility curve of NaNO₃ showing the solubility for a wide range of temperatures.

In such curve the solubility of NaNO₃ at 50°C is about 115 g of NaNO₃ per 100 g of water.

Hence, do the proportion to determine the amount of solute that can be dissolved in 50 grams of water at 50°CÑ

115 g NaNO₃ / 100 g H₂O = x / 50 g H₂O ⇒ x = 57.5 g NaNO₃

Conclusion: 50 grams of water can contain 57.5 g of NaNO₃ dissolved; so, a solution containing 60 g of NaNO₃ completely dissolved in 50 grams of water is supersaturated.

3 0

3 years ago

What is the energy released in this β − β − nuclear reaction 40 19 K → 40 20 C a + 0 − 1 e 19 40 K → 20 40 C a + − 1 0 e ? (The

Effectus [21]

Answer: The energy released in the given nuclear reaction is 1.3106 MeV.

Explanation:

For the given nuclear reaction:

$_{19}^{40}\textrm{K}\rightarrow _{20}^{40}\textrm{Ca}+_{-1}^{0}\textrm{e}$

We are given:

Mass of $_{19}^{40}\textrm{K}$ = 39.963998 u

Mass of $_{20}^{40}\textrm{Ca}$ = 39.962591 u

To calculate the mass defect, we use the equation:

$\Delta m=\text{Mass of reactants}-\text{Mass of products}$

Putting values in above equation, we get:

$\Delta m=(39.963998-39.962591)=0.001407u$

To calculate the energy released, we use the equation:

$E=\Delta mc^2\\E=(0.001407u)\times c^2$

$E=(0.001407u)\times (931.5MeV)$ (Conversion factor: $1u=931.5MeV/c^2$ )

$E=1.3106MeV$

Hence, the energy released in the given nuclear reaction is 1.3106 MeV.

6 0

3 years ago

Which block contains 5 orbitals?

exis [7]

D sublevel because the s sublevel has one orbital, the p sublevel has three orbitals, the d sublevel has five orbitals, and the f sublevel has seven orbitals. In the first period, only the 1s sublevel is being filled.

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3 years ago

Which group, metals or nonmetals, has the greatest chance to gain electrons and to become negative ions?

tatyana61 [14]

It would be non-metals

8 0

3 years ago

Please help!!

andriy [413]

(I know this is late so hopefully other people find it helpful)

Answer: Solid Cu

Since this is a voltaic cell:

Copper is the cathode, therefore having a positive charge.

Zinc is the anode, therefore having a negative charge.

(Also, I took the exam and it's correct; good luck everyone!)

3 0

2 years ago