Chemistry, 20.02.2020 18:09, james8781

What is Charles law and how do you salve Charles law proportion? ESSAY

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Charles law states that at a constant pressure, the volume of a fixed mass of dry gas is directly proportional to it's absolute temperature.

Explanation: Let's take volume to be "V" and temperature to be "T".

Therefore, from this definition of charles law, we can say that:

V ∝ T

Since "V" and "T" vary directly, we can equate them by making use of a constant "K".

Therefore, V = KT

Making "K" a factor of the equation, we get: K= V/T.

If the initial volume & temperature are "V1" and "T1" respectively, and the final volume & temperature are "V2" and "T2" respectively; therefore since "K" is a constant,

V1/V2 = T1/T2 = k.

We can therefore generalize the formula as V1/V2 = T1/T2 or

V1*T2 = V2*T1

answered: Guest

d.) circle motion requires a force to give it a centripetal acceleration.

answered: Guest

assuming that your periodic table has eighteen columns, you should highlight the four elements in the third column from the left of the table.

explanation

neutral atoms of elements after calcium contain d electrons. the energy of d orbitals of a particular main shell lies between the energy of the s and p orbitals of the next main shell. for example, electrons in the $3d$ have energy higher than those in the $4 s$ orbital while lower than those of the $4 p$ orbital.

by the aufbau principle, electrons fill orbitals one at a time, starting from those of the lowest energy. the $4s$ orbital is therefore filled right after $3p$ orbitals and before $3 d$ orbitals.

potassium has electron configuration $[\text{ar}] 4 s^{1}$ and calcium $[\text{ar}] 4 s^{2}$ . the s orbital of a main shell holds a maximum of two electrons. the next element would thus have the electron configuration $[\text{ar}] 4 s^{2} \; 3d^{1}$ and satisfy the requirements.

a neutral atom of the element contains three electrons on top of the most recent noble gas element. it should thus be placed in the third column of the periodic table. both scandium and yttrium would satisfy the conditions. an aufbau diagram indicates that the 4f orbital is filled before the 5d. however, it appears that exceptions exists for both lanthanum and actinium. neutral atoms of the two d-block elements also demonstrate the $ns^{2} \; (n-1) p^{1}$ and should be highlighted as well.

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What is Charles law and how do you salve Charles law proportion? ESSAY...