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SIZIF [17.4K]
3 years ago
13

Heat passes from__________ to ________________

Chemistry
1 answer:
xeze [42]3 years ago
8 0

Answer:

How does heat move?

Heat moves in three ways: Radiation, conduction, and convection.

Radiation happens when heat moves as energy waves, called infrared waves, directly from its source to something else. This is how the heat from the Sun gets to Earth.  In fact, all hot things radiate heat to cooler things. When the heat waves hits the cooler thing, they make the molecules of the cooler object speed up.  When the molecules of that object speed up, the object becomes hotter.

Explanation:

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Which is the correct equation for the reaction of magnesium with hydrochloric acid to produce hydrogen and magnesium chloride?
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A sample of helium gas has a volume of 1.25 L and a temperature of 22 °C, under a constant pressure. What is the new volume if t
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Answer:

the new volume is 1.35L

Explanation:

The computation of the new volume in the case when the temperature rises to 45 degrees is shown below:

GIven that

Volume = 1.25L

And, the temperature is 22 degrees celsius

So, T_1 = (275 + 22)k

= 297 k

Now

T_2 = (275 + 45)k

= 320 k

Now as it is a constant pressure

So, the new volume is

\frac{V_1}{T_1} = \frac{V_2}{T_2}  \\\\V_2 = \frac{V_1}{T_1}\times T_2 \\\\= \frac{1.25}{297}\times 320

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