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arlik [135]
3 years ago
15

Wind is related to the movement of warm and cold air masses. Which kind of heat transfer does this represent?

Chemistry
1 answer:
oksano4ka [1.4K]3 years ago
3 0
I assume you meant to write convection for one of those answers. Convection is the way that heat is transferred through liquids and gases.
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valentinak56 [21]

Answer: Thus 234 kJ of energy are required to produce 1.00 kilogram of iron metal

Explanation:

To calculate the number of moles , we use the equation:

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}  

Putting values , we get:

\text{Moles of iron}=\frac{1000g}{56g/mol}=17.8moles    (1.00kg=1000g)

The balanced chemical reaction is:

Fe_2O_3(s)+2CO(g)\rightarrow 2Fe(s)+3CO_2(g)   \Delta H=+26.3kJ

Given :

Energy released when 2 moles of Fe is produced = 26.3 kJ

Thus Energy released when 17.8 moles of Fe is produced =

= \frac{26.3kJ}{2}\times 17.8=234kJ

Thus 234 kJ of energy are required to produce 1.00 kilogram of iron metal

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