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1 atm = ______________ Pa

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SSC Scientific Assistant Physics Official Paper (Held On: 22 Nov 2017 Shift 1)
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  1. 760
  2. 133
  3. 1000
  4. 1.013 x 105

Answer (Detailed Solution Below)

Option 4 : 1.013 x 105
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CONCEPT:

  • Pressure: The force per unit area is called pressure. It is denoted by P.
  • The SI unit of pressure is the pascal (Pa).
  • It is a scalar quantity because the pressure acts in all directions at a point inside a gas.
  • The basic formula for pressure is given by:

EXPLANATION:

  • Pressure: The force applied perpendicular to an object's surface by area of the region over which the force is spread is called force.

  • The relation between pascal and atmospheric pressure is given by 

⇒ 1 atm =  1.013 x 105 Pa

  • 1 bar = 105 pascal

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