Describe the type of force which exists between particles in an ideal gas. A) There are strong attractive and repulsive forces between gas particles.
B) There are no attractive or repulsive forces between gas particles.
C) There are only attractive forces between gas particles.
D) There are only repulsive forces between gas particles.

B) There are no attractive or repulsive forces between gas particle

Explanation: According to the kinetic Molecular theory of ideal gases, There are no inter molecular  forces ( attraction or repulsion ) between gas particles  of an ideal gas because it is assumed that ideal gases are constantly in random motion with each particles moving  independently of the motion of other particles which bounce off each other upon collision.

Deviations to this assumptions occur at low pressures and high temperatures where ideal gases behave like real gases and exhibit  forces of attraction between particles, a reason for gases condensing to liquids.

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.

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