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4 years ago

Describe the range of the radii of most atoms

1 answer:

8 0

The radii of most atoms are actually measured in the Ǻ, or Angstrom. We can do it in nanometers too, however.
<span>First, we take the radius of the smallest atom, He (Helium). Atomic radius = .031 nm. The largest atom, stable atom is Fr (Francium), with atomic radius = .27 nm. </span>
<span>Therefore, the typical atomic radius is between .031 and .27 nm.</span>

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Which gas would you expect to deviate more from ideality, h2 or hbr? explain your answer. which factor is the major cause for de

Over [174]

Deviation of ideal gas is mainly due to interaction between the particles itself, the more they interact with each other, the more it deviates.

HBr deviate more from ideality because of the high electronegativity of bromine. an ideal gas has molecules that preform elastic collision , because bromine is solo electro negative, it may begin to attract slight positive charge of hydrogen atom on other molecules. H2 does not have dipole moment so would act like an ideal gas.

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4 years ago

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What is meant by conversion of energy

MissTica

the process of changing one form of energy into another

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3 years ago

What are microchips? how are they related to integrated circuits?

Iteru [2.4K]

Answer:

A monolithic integrated circuit (IC)

Explanation:❤

A monolithic integrated circuit (IC) or often referred to as a microchip or simply chip is a miniaturized electronic circuit (consisting mainly of semiconductor devices, as well as passive components) which has been manufactured in the surface of a thin substrate of semiconductor material.

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4 years ago

cooling a sample of matter from 70°c to 10°c at constant pressure causes its volume to decrease from 873.6 to 712.6 cm3. classif

jek_recluse [69]

Explanation:

Expression for the coefficient of thermal expansion is as follows.

$\alpha = \frac{1}{V}(\frac{\Delta V}{\Delta T})$

where, V = initial volume

$\Delta V$ = Final volume - initial volume

= (712.6 - 873.6) $cm^{3}$

= -161 $cm^{3}$

Now, we will calculate the change in temperature as follows.

$\Delta T$ = Final temperature - Initial temperature

= (10 + 273) K - (70 + 273) K

= 283 K - 343 K

= -60 K

Substituting these values into the equation as follows.

$\alpha = \frac{1}{873.6} \times (\frac{161}{60}) K^{-1}$

= 0.00307 $K^{-1}$

It is known that for non-ideal gases the value of alpha is 0.366% which is 0.00366 per Kelvin. As it is close to our result, hence the given sample of gas is a non-ideal gas.

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4 years ago

Which of the following is true for a system whose equilibrium constant is much greater than one?

vladimir2022 [97]

Answer:

A) The reaction mixture contains mostly products at equilibrium

Explanation:

For the general reaction

Reactants ⇌ Products

The equilibrium constant is

$K_{\text{eq}} = \dfrac{\text{[Products]}}{\text{[Reactants]}}$

Thus, if K is large, the concentration of products is greater than that of reactants.

The reaction mixture will contain mostly products at equilibrium.

C) and E) are wrong. The equilibrium constant gives us information only on the position of equilibrium, not on how fast it is achieved.

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4 years ago