[Chem] Matter in our surroundings
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Last updated 1:26 PM on 7/6/22
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22 Terms
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Negligible compressibility
________- have a definite shape, distinct boundaries, and fixed volumes.
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rubber band changes
A(n) ________ shape under force and regains the same shape when the force is removed.
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atmospheric pressure
The temperature at which a liquid starts boiling at the ________ is known as its boiling point.
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minimum temperature
The ________ at which a solids melts to become a liquid at the atmospheric pressure is called its melting point.
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kinetic energy
The spaces in between the constituent particles and ________ of the particles are minimum in solids, intermediate in liquids and maximum in gases.
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27315 K
The melting point of ice is ________ The process of melting, that is, change of solid state into liquid state is also known as fusion.
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Solids
________ have a tendency to maintain their shape when subjected to outside force.
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state of matter
The ________ can be changed by changing temperature or pressure.
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Atmosphere atm
________] is a unit of measuring pressure exerted by a gas.
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easy evaporation
Cotton, being a good absorber of water helps in absorbing the sweat and exposing it to the atmosphere for ________.
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gaseous state
In the ________, the particles move about randomly at high speed.
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Liquids flow
________ and change shape, so they are not rigid but can be called fluid.
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aquatic animals
The ________ can breathe under water due to the presence of dissolved oxygen in water.
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Particles of matter
________ have force acting between them.
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Pascal Pa
The unit of pressure is ________]: 1 atmosphere= 1.01 x 10 [5] { raised to 5 } Pa.
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energy
The ________ supplied by heat overcomes the forces of attraction between the particles.
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surface area
If the ________ is increased, the rate of evaporation increases.
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solid melts
A stage is reached when the ________ and is converted to a liquid.
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Solid CO2
________ gets converted directly to gaseous state on decrease of pressure to 1 atmosphere without coming into liquid state.
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Solid carbon dioxide CO2
________] is stored under high pressure.
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heat energy
The ________ equal to the latent heat of vaporisation is absorbed from the body leaving the body cool.
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Particles of matter
________ are continuously moving, that is, they possess what we call kinetic energy.
