What is the unit of pressure?

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Solution

The correct option is A

Pressure is defined as force per unit area.
Unit of force is Newton (N) and unit of area is $m^{2}$ .
$∴$ Unit of pressure is $N m^{- 2}$ .
1 $N m^{- 2}$ = 1 pascal.

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Similar questions

If the value of atmospheric pressure is $10^{6} d y n e c m^{- 2}$ , then its value in SI units is:

The relation between pressure exerted byan ideal gas $(p_{i d e a l})$ and observed pressure $(p_{r e a l})$ is given by the equation,

$P_{i d e a l} = P_{r e a l} + \frac{a n^{2}}{V^{2}}$

(i) If pressure is taken in $N m^{- 2}$ , number of moles in mol and volume in $m^{3}$ ,calculate the unit of 'a'.

(ii) What will be unit of 'a' when pressure is in atmosphere and volume in $d m^{3}$ ?

What is the unit of pressure?

196000 N m^{-} 2

98000 N m^{-} 2

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