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Valentin [98]
3 years ago
12

Write the steps used for making tea by using the words: solution, solvent,solute,dissolve,soluble, insoluble, filtrate and resid

ue.
answer​
Chemistry
1 answer:
katen-ka-za [31]3 years ago
6 0

Answer:

Water is solvent and milk, tea powder and sugar is solute.

Explanation:

First take a specific mount of water in teapot which is a solvent and heat it for several minutes. After boiling of water, add 1 to 2 table spoon tea powder in water which is a solute and allow it for boiling. After that add milk and sugar according to your preference and tea is made which is a solution. The milk and sugar dissolve in the water but the tea powder did not dissolve so it can be filtrate with the help of filtration tool and all the residue trap at that tool while the tea is clean from all undissolved particles.

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Answer:

75 kJ/mol

Explanation:

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ln(k) = ln(A) -Ea/RT

Where A is a constant of the reaction, which doesn't depend on the temperature, R is the gas constant (8.314 J/mol.K), and T is the temperature. So, for two different temperatures, if we make the difference between the two equations:

ln(k1) - ln(k2) = ln(A) - Ea/RT1 - ln(A) + Ea/RT2

ln (k1/k2) = (Ea/R)*(1/T2 - 1/T1)

k1 = 8.3x10⁸, T1 = 142.0°C = 415 K

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Hope this helps! :)
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