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Physical World — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsPhysical World1 Mark
Question
What is the relation between bar and torr?
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Answer

Both are units of measuring pressure. $1 \mathrm{bar}=1 \mathrm{~atm}$. pressure $=760 \mathrm{~mm}$ of Hg column
$=10^5 \mathrm{Nm}^{-2}$
and 1 torr $=1 \mathrm{~mm}$ of Hg column
Clearly, 1 bar = 760 torr.

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