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irina [24]
2 years ago
10

What is the name of the molecule that is used to heat most of our buildings? (Chemistry)

Chemistry
1 answer:
mario62 [17]2 years ago
7 0

Answer:

Fluids (air/water) either as water vapour or oxygen and carbon dioxide.

Explanation:

Heat transfer occurs through conduction, convection or radiation.

Many aties, this involves fluids whose molecules have been activated by heated by heat, moving from hotter to cooler regions, allowing for heating or cooling of the rooms.

Building materials have varying conductivity.

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3.74g of ethylene glycol must be added to decrease the freezing point by 0.400°C

Explanation:

One colligative property is the freezing point depression due the addition of a solute. The equation is:

ΔT=Kf*m*i

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0.400°C / 1.86°C/m*1 = 0.215m

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0.2800kg * (0.215moles / 1kg) = 0.0602 moles of solute must be added.

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0.0602 moles * (62.10g / mol) =

3.74g of ethylene glycol must be added to decrease the freezing point by 0.400°C

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