Which is not a unit of pressure ?
(a) Bar
(b) N/m²
(c) Kg/m²
(d) Torr
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Kg/m² is not the unit for pressure.
Explanation: We can define pressure as force per unit of a surface area.
pressure = force/area= n/m²
Therefore, n/m² is equal to 1 pascal.
The standard unit for pressure is Pascal.
1atm.=1.01×105Pa
1 torr =133.3Pa
Torr is the measuring unit for pressure, which is 1/760 of the atmosphere.
1 bar = 100 kilopascal
The bar is the unit of measuring pressure like pascal, atmosphere, etc.
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