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3 years ago

I need help.... How does the kinetic energy of molecules explain both Boyle’s and Charles’ Laws?

Chemistry

2 answers:

yulyashka [42]3 years ago

7 0

Answer:

Kinetic Molecular Theory states that gas particles are in constant motion and exhibit perfectly elastic collisions.

Explanation:

Kinetic Molecular Theory states that gas particles are in constant motion and exhibit perfectly elastic collisions. Kinetic Molecular Theory can be used to explain both Charles' and Boyle's Laws. The average kinetic energy of a collection of gas particles is directly proportional to absolute temperature only.

Aleks [24]3 years ago

4 0

Answer:

Explanation:

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A steel container with a movable piston contains 2.00 g of helium which was held at a constant temperature of 25 °C. Additional

shtirl [24]

Answer: D) 1.00 g

Explanation:

According to the Avogadro's law, the volume of gas is directly proportional to the number of moles of gas at same pressure and temperature. That means,

$V\propto n$

or,

$\frac{V_1}{V_2}=\frac{n_1}{n_2}$

where,

$V_1$ = initial volume of gas = 2.00 L

$V_2$ = final volume of gas = 3.00 L

$n_1$ = initial moles of gas = $\frac{\text {Given mass of helium}}{\text {molar mass of helium}}=\frac{2.00g}{4g/mol}=0.500mol$

$n_2$ = final moles of gas = ?

Now we put all the given values in this formula, we get

$\frac{2.00L}{3.00L}=\frac{0.500mol}{n_2}$

$n_2=0.75mole$

Mass of helium = $moles\times {\text {molar mass}}=0.75\times 4=3.00g$

Thus mass of helium added = (3.00-2.00) g = 1.00 g

4 0

3 years ago

How do I write 0.03438 m in scientific notation using 3 digits?

Law Incorporation [45]

3.44x10^2
you move the decimal over to get a single digit number with change. The number of times you move the decimal is the number for the 10 power

4 0

3 years ago

What type of reaction occurs when complex compounds are broken down into simpler substances?

Zarrin [17]

Complex compounds are broken down to simpler substances in catabolic reactions.

These kinds of reactions often occur in biological systems. In living organisms, complex compounds like lipids, proteins and complex sugar like cellulose are broken down into simpler forms. Products of these reactions are simple sugars, amino acids etc. but a certain amount of energy is also produced and stored in energy molecules for future use.

4 0

3 years ago

100 points! Please help! Will give brainliest!!

patriot [66]

1- change of state (boiling)
2-increase in acidity
3-methylxanthines (caffeine) theobromine and theophylline
4- lemon juice

3 0

3 years ago

Explanation needed please!

VashaNatasha [74]

Answer:

Below

Explanation:

2) there are 28 protons in this isotope

The number that is on the bottom of the "stacked pair" tells you how many protons are in this isotope. It is often represented by the variable Z.

3) there are 35 neutrons in this isotope

Subtract the number of protons (28) from the top number

4) there are 28 electrons in the neutral element of Nickel

If you were to look at the period table and find Ni, you would see that its atomic number is 28. This number tells us the amount of protons and electrons there are in that element.

5) 62.9296694 atomic mass units

Just search it up (unless your teacher wants you to calculate it)

6) there are 92 protons in this isotope

Again just look at the Z value to find the proton count

7) there are 146 neutrons in this isotope

Subtract 238 - 92 = 146

8) there are 92 electrons in the neutral element of uranium

Again just look at the periodic table and find U

9) 238.0507882 atomic mass units

10) 12C or carbon 12 is more likely to bond with oxygen that 14c carbon 14

This is because 12C is more abundant at 98.93% than 14C

Hope this helps! Best of luck <3

6 0

3 years ago