1) Which of the following is found in solid state at room temperature?
2) how gases show faster rate of diffusion because?
3) what are the similarities between a liquid and the gases?
4) what are the properties to flow is unique to fluids?
5) temperature 200 degree Celsius equal nearly to?
6) what condition out of the following which increase the evaporation of water?
7) a substance has no mass can we consider it is a matter?
8) a given substance x has definite volume but no define shape and can diffuse easily what is the physical state of a substance x?
9) rubber band change its shape it is solid?
10) why do liquid take up the shape of the container in which they are kept?
11) why do gases exert more pressure on the wall of the container had the solid?
12)which characteristic of a gas is used in supplying oxygen cylinder equal to hospital?
13) why is boiling called a bulk phenomenon?
14) why the temperature remain constant during sublimation?
15) what is mean by latent heat of the vaporization?
16) what happened to the melting point of solid with the decrease in pressure?
17) why should wet cloth are spread while drying?
18) what is the effect of sprinkling of water on the roof or open ground on a hot sunny day?
19) what is dry ice ?how it is formed?
20) draw a well labelled diagram showing sublimation of ammonium chloride?
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