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Mandarinka [93]
3 years ago
12

Which process requires water to gain heat energy from the environment

Chemistry
1 answer:
elixir [45]3 years ago
4 0

Answer:

Evaporation

Explanation:

Evaporation is the certain process that requires water to gain heat energy from the environment.

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How many liters of O2 at 298 K and 1.00 bar are produced in 1.50 hr in an electrolytic cell operating at a current of 0.0200 A?
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Answer: 0.0069L

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2H2O(l) ---->O2(g) + 4H+(aq) + 4e-

no of moles= it/eF

NO of moles of O2 produced = (Current in Ampere x Time in second)/ (Faraday constant x Number of electrons required)

Moles of O2 produced = (0.02x (60 x 60X1.5 s)/(96485 x 4)

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Using  ideal gas equation,

P V = n R T

Where, P is the pressure,

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Substituting the values,

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Volume of O2 produced = 0.0069L

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