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A student reads a barometer in the laboratory and finds the prevailing atmospheric pressure to be 739 mmHg. Express this pressure in torr and in atmospheres. Hint: Pressure

Respuesta :

xero099

Answer:

[tex]739\,mm\,Hg = 739\,torr = 0.972\,atm[/tex]

Explanation:

760 torr equals 760 mm Hg and 1 atmosphere of pressure. Hence, we get all equivalencies by simple rule of three:

[tex]x = 739\,mm\,Hg\times \frac{760\,torr}{760\,mm\,Hg}[/tex]

[tex]x = 739\,torr[/tex]

[tex]x = 739\,mm\,Hg\times \frac{1\,atm}{760\,mm\,Hg}[/tex]

[tex]x = 0.972\,atm[/tex]

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