General Properties of Gases
General Properties of Gases
The Gaseous State
In gases, the intermolecular force of attraction is so weak and the intermolecular space is so large that the particles become completely free to move randomly in the entire available space.
General Properties of Solids
1. Shape and Volume: a gas has neither a definite shape nor a definite volume. It takes the shape and volume of the vessel in which it is kept. It occupies all the available space in the vessel because the particles can freely move throughout the space.
2. Density: the density of gases is lower than those of solids and liquids.
3. Melting and boiling points: at normal atmospheric pressure, the melting and boiling points of a gas are below room temperature. They are lower than those of solids and liquids.
4. Compressibility: the compressibility of a gas is very high. The intermolecular space in a gas being large, the particles can be made to come much closer together under pressure. That is why a large amount of air can be pumped into the small volume of a cycle tube or a football bladder. The property of compressibility of gases is made use of in storing fuel gases in cylinders. Butane is called a petroleum gas as it is obtained from petroleum refineries. Butane has been found to be an efficient domestic fuel. It is liquefied under pressure, packed in cylinders and made available for usage as LPG (Liquefied Petroleum Gas). Oxygen supplied to hospitals in cylinders is another example of compressed gas. So is Compressed Natural Gas (CNG), the fuel which is now increasingly being used in vehicles.
Gases possess neither fixed volume nor fixed shape because : | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following are correct : (a) A gas has neither a definite shape nor a definite volume. (b) The density of gases is lower than those of solids and liquids. (c) The density of gases is higher than those of solids and liquids. | |||
| Right Option : A | |||
| View Explanation | |||
CNG stands for _______________ | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [10]
My experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
