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3 years ago

Why do solids not diffuse

Chemistry

2 answers:

Ulleksa [173]3 years ago

8 0

Answer:

This is because of diffusion , the movement of particles from an area of high concentration to an area of low concentration. ... This means that diffusion does not happen in solids – the particles in a solid can only vibrate and cannot move from place to place.

Shkiper50 [21]3 years ago

4 0

Answer:

Solids cannot diffuse each other because they are tightly packed and they are rigid and do not have fluidity.

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Mitochondria are often referred to as the powerhouses of the cell. They help turn the energy we take from food into energy that the cell can use. But, there is more to mitochondria than energy production. Present in nearly all types of human cell, mitochondria are vital to our survival.

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3 years ago

At a certain temperature, O2 molecules move at an average velocity of 480 m/s. At that same temperature what would be the veloci

german

Answer:

$r_{He}=169.7m/s$

Explanation:

Hello there!

In this case, since this problem can be understood via the Graham's law, which states that states that the rate of diffusion or of effusion of a gas is inversely proportional to the square root of its molecular weight, which can be extrapolated to the rate, we have:

$\frac{r_{O_2}}{r_{He}} =\sqrt{\frac{M_{He}}{M_{O_2}} }$

Thus, since the molar mass of helium is 4.0 g/mol and that of oxygen is 16.0 g/mol, we solve for the average velocity of helium as shown below:

$r_{He}=r_{O_2}\sqrt{\frac{M_{He}}{M_{O_2}} }\\\\r_{He}=480m/s\sqrt{\frac{4.0g/mol}{32.0g/mol} }\\\\r_{He}=169.7m/s$

Regards!

4 0

3 years ago

The concentrations of Fe and K in a sample of riverwater are 0.0400 mg/kg and 1.30 mg/kg, respectively. Express the concentratio

Ierofanga [76]

Answer :

The concentration in molality of Fe is, $7.1\times 10^{-7}mol/kg$

The concentration in molality of K is, $3.3\times 10^{-5}mol/kg$

Explanation:

First we have to calculate concentration in molality of Fe.

Molar mass of Fe = 56 g/mol

Concentration of Fe = 0.0400 mg/kg = $4\times 10^{-5}g/kg$

Conversion used : 1 g = 1000 mg

$\text{Concentration in molality}=7.1\times 10^{-7}mol/kg$

Thus, the concentration in molality of Fe is, $7.1\times 10^{-7}mol/kg$

Now we have to calculate concentration in molality of K.

$\text{Concentration in molality}=\frac{\text{Concentration of K}}{\text{Molar mass of K}}$

Molar mass of K = 39 g/mol

Concentration of K = 1.30 mg/kg = $1.3\times 10^{-3}g/kg$

Conversion used : 1 g = 1000 mg

$\text{Concentration in molality}=\frac{1.3\times 10^{-3}g/kg}{39g/mol}$

$\text{Concentration in molality}=7.1\times 10^{-7}mol/kg$

Thus, the concentration in molality of K is, $3.3\times 10^{-5}mol/kg$

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3 years ago

Why does hydrochloric acid have a higher boiling point than diatomic fluorine?

dedylja [7]

Hydrochloric acid is polar which means it has stronger bonds between it's molecules, unlike diatomic fluorine that is non-polar and has weaker bonds. That's why it has a higher boiling point.

4 0

3 years ago

Argon is an inert gas give reason.

Jobisdone [24]

Answer:

You're right

Argon is an inert gas.

Explanation:

7 0

3 years ago

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Why do solids not diffuse​

Why do solids not diffuse