Tag: chemistry

Using the formula of average kinetic energy:

Avg kinetic energy$=\dfrac{3}{2}nRT$

$n _1=0.30$ mol, $T _1=?$

In addiiton to the temperatre steam has latent heat of vapourization which it acquires after converting into steam from water.

A solid consists of low kinetic energy vibrating particles locked into position by interparticle attractive forces. When heat is applied, energy is absorbed and the particles start vibrating more vigorously.
Finally, the vibrations become energetic enough to overcome the attractive forces, and the particles start sliding out of their positions to flow about. The solid is now melting into a liquid.

Evaporation involves conversion of liquid to vapor which happens when latent heat is absorbed by the liquid.

During freezing, inter-molecular attraction increases and the motion of particles becomes slow.

All collisions between the particles of matter are perfectly elastic. Elastic collisions transfer no energy between particles. Each particle has exactly the same energy after the collision as before.

Molecular kinetic energy is maximum in gases and least in solids. Hence, a substance is melted from solid to liquid state, its kinetic energy increases.

When hydrogen gas leaks out of the container, the molecules of the gas remaining in the container have more free space. Hence, distance between the gas molecules increases. By increasing the volume of the container also increases the distance between the molecules.