The unit torr is related to the barometric height as

1 t o r r = 1 c m

of Hg

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1 t o r r = 0.76 m

of Hg

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1 t o r r = 1 m m

of Hg

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1 t o r r = 1 m

of Hg

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Solution

The correct option is D $1 t o r r = 1 m m$ of Hg
The unit torr is related to the barometric height as $1 t o r r = 1 m m$ of Hg. The torr is a unit of pressure, now defined as exactly $1 / 760$ of a standard atmosphere. Thus one $t o r r$ is exactly $101325 / 760$ pascals ( $133.3 P a$ ).

Historically, one $t o r r$ was intended to be the same as one " $m m$ of mercury". However, subsequent redefinition of the two units made them slightly different (by less than $0.000015 %$ ). The $t o r r$ is not part of the International system of units (SI), but it is often combined with the metric prefix milli to name one millitorr (mTorr) or $0.001 T o r r .$

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Similar questions

The unit torr is related to the barometric height as

(a) 1 torr = 1 cm of Hg

(b) 1 torr = 0.76 m of Hg
(c) 1 torr = 1 mm of Hg

(d) 1 torr = 1 m of Hg

1 T O R R

is equal to

1 T o r r

of pressure is equal to:

On a humid summer day, the partial pressure of water in the atmosphere is 18 mm Hg. The barometric pressure on this day is as high as 766 mm Hg, Calculate the partial pressures of nitrogen and oxygen if 78.0% of the dry atmosphere is composed of nitrogen molecules and 21.0% of oxygen? (1% of the dry atmosphere is composed of all other gases)

The unit torr is related to barometric height as

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