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Matter keywords

Answer» \tAnything which occupies space and has mass is called matter.\tThe intermixing of particles of two different types of matter on their own is called diffusion.\tThe temperature at which a solid melts to become a liquid at the atmospheric pressure is called its melting point.\tThe temperature at which a liquid starts boiling at the atmospheric pressure is known as its boiling point.\tThe phenomenon of change of a liquid into vapours at any temperature below its boiling point is called evaporation.\tHumidity is the amount of water vapour present in air.\tA material which can flow easily is called a fluid.\tDiffusion is a property of matter which is based on the motion of its particles.\tSublimation is the change of gaseous state directly to solid state without going through liquid state, and vice versa.\tThe process in which a solid substance changes into a liquid on heating, is called melting.\tThe process in which a liquid substance changes into a gas on heating, is called boiling.\tThe process of changing a gas to a liquid by cooling, is called condensation.\tThe latent heat of fusion of a solid is the quantity of heat in joules required to convert 1 kilogram of the solid to liquid, without any change in temperature.\tThe latent heat of vapourisation of a liquid is the quantity of heat in joules required to convert 1 kilogram of the liquid or gas, without any change in temperature.\tThe process of a liquid changing into vapour even below its boiling point is called evaporation.


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