All categories

3 years ago

All of the following equations are statements of the ideal gas law except

Chemistry

1 answer:

evablogger [386]3 years ago

3 0

Answer:

The first equation, a. PV = nRT, is not a valid statement of the ideal gas law.

Explanation:

The basic expression for the ideal gas law is:

$pV=nRT$ .......... [Equation 1]

Where:

n is the number of moles of the gas

V is the volume occupied by the gas

p is the pressure exerted by the gas molecules

T is the temperature in absolute scale (Kelvin)

R is the Universal gas constant (0.0821 atm-liter /K-mol or the equivalents in other units)

You can perform different algebraic operations to obtain equivalent equations:

Choice b) Divide equation 1 by T and you get:

pV / T = nR, which is the choice b. from your list.

Choice c) Divide equation 1 by n × V and you get:

p/n = RT / V, which is the choice c. from your list.

Choice d) Divide equation 1 n × T and you get:

pV / (nT) = R, which is the choice d. from your list.

The choice a. p = nRTV states that p and V are in direct relation, when the ideal gas law states that p and V are inversely related, so that equation is wrong.

Conclusion: the choice a, p = nRTV, is not a statement of the ideal gas law.

You might be interested in

A compound with the empirical formula CH2 was found to have a molar mass of approximately 112 g. Write the molecular formula of

san4es73 [151]

Answer:

C8H10

Explanation:

n (CH2) = 112

n (12 + 1 + 1) = 112

n (14) = 112

n = 8

Molecular Formula: C8H10

6 0

3 years ago

List the following types of electromagnetic radiation in order of increasing wavelength.

chubhunter [2.5K]

Answer:

Radio, Microwave, Infared, Ultraviolet

Explanation:

look at the EM spectrum

3 0

3 years ago

Which of the following equations does not demonstrate the law of conservation of mass?

enot [183]

The third option does not obey the law of conservation of mass.

Option 3.

Explanation:

The law of conservation of mass states that the sum of the masses of reactants should be equal to the sum of the masses of the products.

For example, if we consider the first option to verify if it obeys law of conservation of mass or not, 2 Na + Cl₂ → 2 NaCl

So one way to verify it is to find the mass of Na, then multiply it with 2, and then add this with 2 times of mass of chlorine. So this sum should be equal to the 2 times mass of NaCl. But it is somewhat lengthy.

Another way to easily determine this is to check if the elements are present equally in both sides. Such as, in reactant side and product side 2 atoms of Na is present . Similarly, the Cl atoms are also present in equal number in both reactant and product side. Thus this obeyed the law of conservation of mass.

Like this, if we see the second option, there also 1 atom of Na is present in reactant and product side and 2 molecules of H is present in reactant and product side, 1 oxygen is present in reactant and product side and 1 Cl is present in reactant and product side. So it also obeys the law of conservation of mass.

But in the third option, P₄ + 5 O₂→ 2 P₄O₁₀, here, there is 4 atoms of P in reactant side but in product side there is (4*2) = 8 atoms of P. Similarly, the number of atoms of oxygen in reactants and product side is also not same. So the third option does not obey the law of conservation of mass.

The fourth option also obeys the law of conservation of mass as the number of atoms of each element is same in both the product and reactant side.

Thus, the third option does not obey the law of conservation of mass.

5 0

3 years ago

What is the scientific name for weight?

katovenus [111]

Hello the term for weight is newton

hope this helped.

Cody

5 0

3 years ago

Read 2 more answers

Fermeroben heres the messages COUGH

lord [1]

I completely understand your gripe. I also believe that you are the better option. It will only take time until she is yours, despite your parent's views. Keep it up

6 0

3 years ago