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Definition（定义）:Solid(s):has a ___（确定的） shape and___（体积） but cannot ___（流动）Liquid(l):has a definite volume but take the shapes of it ___（容器）,___(能够) flow。Gas(g):has not definite shape or volume but can move ___(自由的)most substances can exist in an...
Gas is a state of matter characterized by its molecules or atoms being arranged without structure so that they are collectively fluid and have neither a definite shape nor a definite volume. A basic gas definition in chemistry or physics is that gas is one of the three fundamental states of ...
This form of matter does not have a definite shape or volume. a. solids b. liquids c. gases d. colloids Which phase of matter is made up of particles that are packed closely together, with both a definite shape and a definite volume? A. Gas B. Liquid C. P...
Gas, one of the three fundamental states of matter, with distinctly different properties from the liquid and solid states. The remarkable feature of gases is that they appear to have no structure at all. They have neither a definite size nor shape, where
In conclusion, vapour is a gas that is in the process of becoming a liquid, while gas is a substance that is made up of molecules that are far enough apart to move freely. Vapour and gas have different properties, depending on how close the molecules are to each other. For example, wh...
7. Which one of the following pairs of statements about a liquid and a gas is true?! 3Liquid Gas(1)It has mass.It has no mass.(2)It cannot be seen.It can be seen.(3)It has a fixed volume.It does not have a fixed volume.(4)It has a definite shape.It has no definite shape...
For a gas in a cylinder with a movable piston, the state of the system is identified by the temperature, pressure, and volume of the gas. These properties are characteristic parameters that have definite values at each state and are independent of the way in which the system arrived at ...
Matter exists in three main states, solid, liquid, and gas. Solids have a definite shape and volume (for example Ice). Liquids, likewater, have a defined volume but can change their shape depending upon the container. Everyone needs one or more of the three states of matter in some way...
12.Air is a mixture of gas, of which oxygen forms 21% by volume.空气是一种混合气体,其中氧气按体积占21% 13.Gases, liquids and solids do not increase in volume at the same speed.气体、液体和固体体积膨胀的速度不一样。 14.Gases have neither definite size nor definite shape .气体既无一定...