Physics · Pressure due to a fluid column, Pascal's law and its applications, effect of gravity on fluid pressure
1atm
1atm \( = \)
- A. \( 100 \mathrm{cm} \) of \( \mathrm{Hg} \)
- B. \( 76 \mathrm{cm} \) of \( \mathrm{Hg} \)
- C. \( 20 \mathrm{cm} \) of \( \mathrm{Hg} \)
- D. \( 25 \mathrm{cm} \) of \( \mathrm{Hg} \)
Step-by-step solution
Standard atmospheric pressure (1 atm) is defined as the pressure exerted by a 76 cm column of mercury (Hg) at 0°C at sea level.
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