Which is wrong according to Kinetic theo...

Which is wrong according to Kinetic theory?

The average K.E. of the molecules is directly proportional to the absolute temperature.

All the molecules in a gas have the same K.E.

Collisions between molecules are perfectly elastic

Pressure is due to the impact of the molecules on the walls of the container

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According to Bohr.s theory

When the atom gets the required energy from outside, electrons jumps from lower orbits to higher orbits and remain there

When the atom gets the required energy from outside, electrons jumps from lower orbits to higher orbits and remain there for very short intervals of time and return back to the lower orbit, radiating energy

Angular momentum of the electron is proportional to its quantum number

Angular momentum of the electron is independent to its quantum number

Helium molecule is two times heavier than hydrogen molecule at 298 K. According to kinetic theory, the average kinetic energy of helium at 298 K is

two times higher than a hydrogen molecule

four times highher than a hydrogen molecule

same as that of a hydrogen molecule

half of a hydrogen molecule

What is the RMS speed of a moist particle of mass 10^(-12) g at 27°C according to kinetic molecular theory?

0.35 cm/sec

0.45 cm/sec

0.6 cm/sec

0.7 cm/sec