Please select a subject first
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Boiling takes place at all temperatures.
Concept: undefined >> undefined
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Evaporation takes place over the entire mass of the liquid.
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The process of a gas converting directly into solid is called vaporization.
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At high altitudes, water boils above 100° C.
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Evaporation takes place at ...............temperature.
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.............. process is just reverse of melting.
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State three properties of molecules of a matter.
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What is meant by the intermolecular forces of attraction? How do they vary in solids, liquids and gases?
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Discuss the three states of matter solid, liquids and gas on the basis of molecular model.
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Equal volumes of the two different substances have equal masses.
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The density of a piece of brass will change by changing its size or shape.
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Relative density of water is 1.0.
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When a body is immersed in a liquid, the buoyant force experienced by the body is equal to the volume of the liquid displaced by it.
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1 kg is the mass of ............ml of water at 4°C.
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Mass = density x .........
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Density of water is .......Kg m-3.
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1 g cm-3 = ......... Kg m-3.
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Match the following :
| Column A | Column B | ||
| (a) | kg `m^-3` | (i) | relative density |
| (b) | no unit | (ii) | sinks in alcohol |
| (c) | relative density | (iii) | floats on water |
| (d) | iron | (iv) | density |
| (e) | wood | (v) | density bottle |
Concept: undefined >> undefined
