answer this assignment questions of chemistry
Answers
What are the characteristics of particles of matter?
The particles are very, very tiny in size. Matter particles have space in between them. The particles of matter shift continuously. The Matter Particles attract each other.
A gas fills completely the vessel in which it is kept answer
A gas completely fills the vessel in which it is kept because there is negligible force of attraction between the particles of gas. Thus, the gas particles move freely in all directions.
Are the three states of matter interconvertible how are they interconnect
Depending on temperature and pressure levels, matter can exist in one of the three main states, i.e., solid, liquid, or gas. Matter can be inter converted by adding or removing heat energy from one state to another. Both three substantive states are inter-convertible.
How does evaporation causes cooling
Evaporation causes cooling because the process requires heat energy. The energy is taken away by the molecules when they convert from liquid into gas, and this causes cooling on the original surface.
Why should we wear cotton clothes in summer
We wear cotton clothes during summer as cotton absorbs sweat from the body, exposing to the atmosphere for easy evaporation. As we tend to sweat more during summer and cotton fabric absorbs sweat and help body to cool down.
Why it is that a wooden chair should be called a solid not a liquid
Because a wooden chair is a solid and solids have least inter particle space between their molecules while in liquids they have less inter particle space between their molecules as compared to solids and solids have definite shape like a wooden chair but liquids have not.So a wooden chair is a solid.
what is evaporation what are the factors affecting it
Evaporation is the process of a liquid turning into gas due to absorption of heat. factors affecting evaporation are: Temperature Surface area of the liquid exposed to the atmosphere Wind speed and Humidity.
What happens when we apply pressure to the particles of matter
The particles will get packed and draw nearer to each other and free vitality and their Kinetic Energy additionally decreases. They change their state from gas to fluid and afterward into strong. Heat vitality will be discharged.
When heat is being applied to a solid, then what does the heat energy do to the particles of matters? -
As we heat any substance it gains internal energy which is a function of temperature. The heat energy added increases the lattice vibrations inside the material.
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