2 years ago

Two facts about calorimetry

1 answer:

8 0

The measure of the quantity of heat exchanged.
Uses many different units of measurements.

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Lerok [7]

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galina1969 [7]

Answer:it doesn’t

Explanation:

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Allisa [31]

The first one is wrong

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Norma-Jean [14]

The answer is B. Centrifugation

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Harlamova29_29 [7]

Answer : It take time for the concentration to become 0.180 mol/L will be, 277.8 s

Explanation :

The integrated rate law equation for second order reaction follows:

$k=\frac{1}{t}\left (\frac{1}{[A]}-\frac{1}{[A]_o}\right)$

where,

k = rate constant = $1\times 10^{-2}mol/L.s$

t = time taken = ?

[A] = concentration of substance after time 't' = 0.180 mol/L

$[A]_o$ = Initial concentration = 0.360 mol/L

Putting values in above equation, we get:

$1\times 10^{-2}=\frac{1}{t}\left (\frac{1}{0.180}-\frac{1}{0.360}\right)$

$t=277.8s$

Hence, it take time for the concentration to become 0.180 mol/L will be, 277.8 s

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3 years ago