3 years ago

When ironing clothes, the primary method of heat transfer is A) conduction. B) convection. C) insulation. D) radiation.

1 answer:

GaryK [48]3 years ago

4 0

I think the answer is radiation I am not hundred percent sure though

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victus00 [196]

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E. A direct measure of internal kinetic energy

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ANEK [815]

The moles of barium nitrate in the solution has been 0.5 mol. Thus, the correct option is B.

Molarity has been defined as the moles of substance in a liter of solution. Molarity has been expressed as:

$\rm Molarity=\dfrac{Moles}{Volume}$

<h3>Computation for moles of Barium nitrate</h3>

The given barium nitrate solution has the volume of 0.25 L.

The molarity of the solution has been 2 M.

Substituting the values for the moles of Barium nitrate

$\rm 2=\dfrac{Moles}{0.25}\\
 Moles=2\;\times\;0.25\;mol\\
Moles=0.5\;mol$

The moles of barium nitrate in the solution has been 0.5 mol. Thus, the correct option is B.

Learn more about molarity, here:

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3 years ago