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maxonik [38]
3 years ago
9

hi:) evaporation is the process by which liquids changes to gas at temperatures lower than boiling point. But why can’t liquids

evaporate at their boiling point? Is that because liquids will boil instead of evaporate? Anyone able to help I’m rlly confused.
Chemistry
2 answers:
Sindrei [870]3 years ago
6 0

Answer:

evaporation is the process by which liquids changes to gas at temperatures lower than boiling point. But why can’t liquids evaporate at their boiling point? Is that because liquids will boil instead of evaporate?

Evaporation only take place at a certain temperature or it is high at a particular temperature which makes it to be rapid then, when liquid is heated, at a temperature the vapor leaves and evaporates in gaseous form known as vapor to the atmosphere. Evaporation takes place below the temperature of boiling point and above it but the rapidity depends on the temperature, the higher the temperature the rapid the evaporation takes place

Explanation:

fiasKO [112]3 years ago
5 0

Answer: I’m not sure if this will help, but once it reaches its boiling point and actually makes the state of matter change from a liquid to gas, that is referred to as vaporization. Evaporation occurs below the boiling point and vaporization occurs at or above it.

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What is the freezing point of an aqueous solution that has 25.00 g of calcium iodide dissolved in 1250 g of water?
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Answer:

<u></u>

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Explanation:

The lowering of the freezing point of a solvent is a colligative property ruled by the formula:

  • \Delta T_f=K_f\times m\times i

Where:

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<u />

<u>a) molality, m</u>

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<u>b) i</u>

  • Each unit of CaI₂, ideally, dissociates into 1 Ca⁺ ion and 2 I⁻ ions. Thus, i = 1 + 2 = 3

<u />

<u>c) Freezing point lowering</u>

  • ΔTf =  1.86 °C/m × 0.068053m × 3 = 0.3797ºC ≈ 0.380ºC

<h2>I have problems to upload the full answer in here, so I attach a pdf file with the whole answer.</h2>
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