# physics

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Q:What happens to the pressure of particles in the container when it is heated.explain.

Q:A pressure of 2200Kpa is exerted by the particles in the container on the wall of area 25cm2. find the force exerted by the particle.

• physics -

1. Pressure goes up with T. Molecules move faster, collide more often with the wall and have more momentum.
2. Force = pressure x area
For force in newtons, pressure must be in Pascals and are in m^2.
2200*10^3 Pa x 25*10^-4 m^2 = ___

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