Admin Table of Contents
What happens to the movement of particles in vaporization?
If a liquid is heated the particles are given more energy and move faster and faster expanding the liquid. The most energetic particles at the surface escape from the surface of the liquid as a vapour as it gets warmer. Liquids evaporate faster as they heat up and more particles have enough energy to break away.
Does vaporization gain or lose energy?
In vaporization does the liquid lose or gain thermal energy and does the movement of particles increase or decrease? It loses thermal energy and the movement of particles decreases.
What happens to the particles during a phase change?
If heat is coming into a substance during a phase change, then this energy is used to break the bonds between the molecules of the substance. The heat is used to break the bonds between the ice molecules as they turn into a liquid phase.
Is melting gaining or losing energy?
One change of state happens when you add energy to the substance. This change of state is called melting. By adding energy to the molecules in a solid the molecules begin to move quicker and can break away from the other molecules.
Does the intermolecular attraction between particles increase or decrease?
This pushing of atoms or molecules results in a slightly increased distance between molecules, and volume of solid also increases. Hence on heating solids, intermolecular forces are becoming weak and intermolecular distance increases. So, the correct answer is “Option A”.
What happens to particle movement when temperature increases?
With an increase in temperature, the particles move faster as they gain kinetic energy, resulting in increased collision rates and an increased rate of diffusion. What would cause a decrease in particle movement?
Why do particles vibrate in solids but not in liquids?
The particles are held together too strongly to allow movement from place to place but the particles do vibrate about their position in the structure. With an increase in temperature, the particles gain kinetic energy and vibrate faster and more strongly. The attractive force in solids need not be stronger than in liquids or gases.
What happens to the particles in a solid when heated?
The particles are held together too strongly to allow movement from place to place but the particles do vibrate about their position in the structure. With an increase in temperature, the particles gain kinetic energy and vibrate faster and more strongly.
Do particles move chaotically in liquids and gases?
Individual particles in liquids and gases have no fixed positions and move chaotically. The collisions between particles differ from collisions between macroscopic objects in that they are perfectly elastic: i.e. the kinetic energy of the particles remains constant and no energy is transformed into other forms during collisions.