Question

the standard pressure of a gas in cm of mercury corresponding to one atmospheric pressure​

Answer 1

Explanation:

The standard pressure of gas in cm of mercury, corresponding to one atmospheric pressure.

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Answer 2

the standard pressure of a gas in cm of mercury corresponding to one atmospheric pressure​ is 76 cm.

• the atmosphere pressure corresponding to 76 cm means that at normal pressure and temperature, the mercury column is at 76 cm supported by the atmospheric pressure.
• its value in pascal - 76cm = 1.103 * 10∧5 Pa.
• so, 1 atm = 76 cm of Hg.
• the relation between 1atm,Pa and Hg is - 1 atm = 101325 Pa = 76 cm of Hg.
• in STP (standard temperature pressure ), the value of pressure taken is 1 atm = 76 cm Hg = 760 m Hg