# (a) What is 1 atm? (b) What is the relation between 1 atm and pascal?

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(a) What is 1 atm?
(b) What is the relation between 1 atm and pascal?

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(a) It is the unit of measurement of pressure and 1 atm=760mm of Hg column.
(b) 1 atm=1.013xx10^5Pa