One atmosphere is equal to (a) 101.325 K pa (b) 1013.25 K pa (c) 510Nm (d) None of these
Correct option is A) One Pascal is the pressure exerted by a force of one newton, normally on an area of one square meter. Atmospheric pressure is the force per unit area by the weight of air on a point. One atmospheric pressure is related with the Pascal as: 1atm=101325Pa
