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Assoli18 [71]
3 years ago
5

In a colloid, solution, or suspension, particles are dispersed throughout the mixture. What is the order of these three types of

mixtures, from the smallest particle size to the largest?
Chemistry
2 answers:
a_sh-v [17]3 years ago
4 0
1) solution
2) colloid
3) suspension
Triss [41]3 years ago
3 0

<u>Answer: </u>Order of mixtures having particle size smallest to large is:

\text{Solution }

<u>Explanation:</u>

The solutions are classified into 3 types on the basis of size of the particles.

1.) Solution: When the particle size is between 0.1 nm to 1 nm, then the solution is considered as a true solution.

2,) Colloid: When the particle size is between 2 to 1000 nm, then the solution is considered as a colloid.

3.) Suspension: When the particle size is greater than 1000 nm, then the solution is considered as a suspension.

Hence, the order of mixtures having particle size smallest to large is:

\text{Solution }

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The rate constant for a certain reaction is measured at two different temperatures:
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According to Arrhenius equation with change in temperature, the formula is as follows.

ln \frac{k_{2}}{k_{1}} = \frac{-E_{a}}{R}[\frac{1}{T_{2}} - \frac{1}{T_{1}}]

k_1 = rate constant at temperature T_1 = 2.3\times 10^8

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T_1 = temperature = 280.0^0C=(273+280)=553K

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Putting in the values ::

ln \frac{4.8\times 10^8}{2.3\times 10^8} = \frac{-E_{a}}{8.314}[\frac{1}{649} - \frac{1}{553}]

E_a=22689.8J/mol

The activation energy Ea for this reaction is 22689.8 J/mol

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