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4 years ago

How the particle motion in a solid is different than the particle motion in a liquid

Chemistry

1 answer:

dalvyx [7]4 years ago

3 0

The particle motion in a liquid is more spread apart, the particle motion in a solid is more compact together

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A balloon filled with helium gas occupies 2.50 L at 25°C and 1.00 atm. When released, it rises to an altitude where the temperat

stira [4]

Answer:

8,19 L

Explanation:

The combined gas law is a equation that can be used when the initial and final conditions -pressure,volume,amount of moles,temperature-, of a gas change during a process. It can be written:

$\frac{P1V1}{n1T1}=\frac{P2V2}{n2T2}$

If the amount of the gas remains constant, then n1=n2 and we have:

$\frac{P1V1}{T1}=\frac{P2V2}{T2}$

For the problem we have:

Note: When working with gases is important to use absolute temperature values (°K, °K=°C+273,15):

P1=1 atm, V1=2,5L, T1=25+273,15=298,15°K

P2=0,3 atm, V2=?, T2=20+273,15=293,15°K

$V2=\frac{P1V1T2}{T1P2}=\frac{1atm*2,5L*293,15K}{298,15K*0,3atm}=8,19L$

The new volume of the balloon is 8,19 L.

5 0

3 years ago

The lowest possible concentration of free hydrogen ions is represented by a ph value of

spayn [35]

PH is the logarithmic measure of the concentration of hydrogen ions in solution. In an aqueous system, the lowest possible concentration of H+ ions (least acidic) is 1x 10^-14. The -log(1x10^-14) = pH of 14

6 0

3 years ago

9. Which of the following would increase the

andreyandreev [35.5K]

I think the answer is C.

3 0

3 years ago

Occurs when a melt is produced when the minerals with the lowest melting temperature melt, while the other minerals remain solid

FrozenT [24]

The answer is Partial melting.

4 0

3 years ago

People often think bonds store or hold energy. If that is true, should the energy be high or low when a bond forms?

marta [7]

Answer:

The energy should be high.

Explanation:

Bonds do store energy and release it depending if it's endothermic or exothermic. The energy should be low because when a bond forms (endothermic) it releases heat, which helps form bonds. Having a high energy means the bond is absorbing energy, which helps break bonds (endothermic). How this helps!

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3 years ago