My question is 'why is conduction not possible in case of liquids and gases '?Please help soon whenever you read I need to give it for submission tomorrow ie 30 th of October
Answers
Because the space between particles is farther apart when in either the gas or liquid state. Solid substances' particles are very close to together, whereas gas particles will actually move are far apart as possible. When the particles are farther apart, it makes the transfer of energy much less efficient.
When the object is heated, its heat energy increases. The increase in the heat energy is due to increase in the kinetic energy and the increase in the kinetic energy is due to vibrating and colliding particles within a medium. In case of solids, the particles are closely packed and in case of liquids, the particles are loosely packed and in case of gases, the particles are extremely away from each other. When the three objects at different states are heated:
In solids: One particle vibrate at the source(due to heat energy) and that particle collide with another particle near it. This process is fast as the particles are near to each other.
In liquids: One particle vibrate at the source(due to heat energy) and that particle collide with another particle near it. This process is slow as the particles are away from each other. So conduction occurs but at a slow rate.
In gases:One particle vibrate at the source(due to heat energy) and that particle collide with another particle near it. This process is extremely slow as the particles are very far from each other. So conduction rarely occurs or occurs at high heat energy supply.