All categories

3 years ago

What does the kinetic theory say about the kinetic energy present in solids

1 answer:

4 0

Answer: The kinetic energy of solids is limited to vibrational energies..the particles are tightly bound in their crystalline structure and can only bend, flex, and vibrate about relatively fixed position. When vibrational energies exceed the strength of the force holding the particles together, the crystal structure collapses and we say the material melted. The particles can now have, in addition to its vibrational energies, rotational energy. Chunks of the collapsed crystal can, like a ball floating in water, rotate without showing much translational energy. Generally, we associate solids with vibrational kinetic energy, liquids with rotational kinetic energy, and gases with translational kinetic energy. Actually though, liquids have both vibrational and rotational energies, and gases have all three.

You might be interested in

If solid nickel metal were mixed with cobalt ion, what would you expect to see happen?

lara31 [8.8K]

Answer:

D. nothing

Explanation:

Cobalt is one of the abundant in the Earth with a chemical configuration of

[Ar] 4s²3d⁷ and has oxidation states Co(ii) and Co(iii).It has two oxidation numbers +2 and +3.In nature Cobalt is found together with iron, nickel, silver and arsenic. It mostly resembles nickel and its significant application is in production of alloys such as Stellite.

4 0

4 years ago

Workers who build railway tracks often use a process called thermite welding to connect pieces of track. Thermite is a mixture o

Paladinen [302]

Explanation:

guess

exothermic because of the heat

4 0

3 years ago

Which statement accurately describes nonrenewable energy sources?

suter [353]

Answer:

a resource that cannot be replenished in a short period of time.

Explanation:

Nonrenewable energy sources take thousands to millions of years to replenish. hence the "nonrenewable".

5 0

3 years ago

Which is an example of a chemical change?

nlexa [21]

<span>Some are burning wood, souring milk, mixing acid and base, digesting food, cooking an egg, heating sugar to form caramel, baking a cake, and <span>rusting of iron.</span></span>

3 0

4 years ago

Read 2 more answers

PLZ HELP *NO LINKS*

Radda [10]

Answer: (1). There are 0.0165 moles of gaseous arsine (AsH3) occupy 0.372 L at STP.

(2). The density of gaseous arsine is 3.45 g/L.

Explanation:

1). At STP the pressure is 1 atm and temperature is 273.15 K. So, using the ideal gas equation number of moles are calculated as follows.

PV = nRT

where,

P = pressure

V = volume

n = number of moles

R = gas constant = 0.0821 L atm/mol K

T = temperature

Substitute the values into above formula as follows.

$PV = nRT\\1 atm \times 0.372 L = n \times 0.0821 L atm/mol K \times 273.15 K\\n = 0.0165 mol$

2). As number of moles are also equal to mass of a substance divided by its molar mass.

So, number of moles of Arsine $(AsH_{3})$ (molar mass = 77.95 g/mol) is as follows.

$No. of moles = \frac{mass}{molar mass}\\0.0165 mol = \frac{mass}{77.95 g/mol}\\mass = 1.286 g$

Density is the mass of substance divided by its volume. Hence, density of arsine is calculated as follows.

$Density = \frac{mass}{volume}\\= \frac{1.286 g}{0.372 L}\\= 3.45 g/L$

Thus, we can conclude that 0.0165 moles of gaseous arsine (AsH3) occupy 0.372 L at STP and the density of gaseous arsine is 3.45 g/L.

4 0

3 years ago