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yawa3891 [41]
3 years ago
7

What happens to particles during changes of state between solids, liquids, and gases?

Chemistry
2 answers:
oksano4ka [1.4K]3 years ago
7 0
Answer:
Their vibrations speed up

Explanation:
They start vibrating faster and faster and start generating more and more heat and separate from each other so, therefore (usually), become less dense
alukav5142 [94]3 years ago
4 0
If they are going from solid to liquid or liquid to gas or solid to gas
The particles will gain energy
The distance between particles increases as they move away from each other
The force attraction decreases
The particles change their arrangement and hense they change state

If there going from gas to solid or from gas to liquid or from liquid to solid

The particles will lose energy
The distance between particles will decrease as they get closer to each other
The force of attraction increases
The particles change their arrangement and hence they change state
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The practical limit to ages that can be determined by radiocarbon dating is about 41000-yr-old sample, what percentage of the or
Aloiza [94]

Answer:

In percentage, the sample of C-4 remains = 0.7015 %

Explanation:

The Half life  Carbon 14 =  5730 year

t_{1/2}=\frac {ln\ 2}{k}

Where, k is rate constant

So,  

k=\frac {ln\ 2}{t_{1/2}}

k=\frac {ln\ 2}{5730}\ hour^{-1}

The rate constant, k = 0.000120968 year⁻¹

Time = 41000 years

Using integrated rate law for first order kinetics as:

[A_t]=[A_0]e^{-kt}

Where,  

[A_t] is the concentration at time t

[A_0] is the initial concentration

So,  

\frac {[A_t]}{[A_0]}=e^{-0.000120968\times 41000}

\frac {[A_t]}{[A_0]}=0.007015

<u>In percentage, the sample of C-4 remains = 0.7015 %</u>

3 0
3 years ago
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