| Category | Format | Size |
|---|---|---|
| People's Education Press Ninth Grade Chemistry Volume 1 | pptx | 6 MB |
"Conditions of Combustion" Fuel and its Utilization PPT Teaching Courseware
Description
"Conditions of Combustion" fuel and its utilization PPT teaching courseware, 12 pages in total.
All-in-one textbook
Purpose
1. Gain a deeper understanding of combustion conditions and further understand the principles of fire extinguishing.
2. Experience the process of experimental inquiry.
Experimental supplies
Beaker, tweezers, crucible tongs, alcohol lamp, tripod, thin copper sheet.
Alcohol, cotton, ping pong balls, filter paper, candles.
I also need experimental supplies: water, scissors, matches, etc.
Experiment content
1. Dip cotton in alcohol and water respectively, place it on the flame of an alcohol lamp and heat it for a moment. Observe that the cotton dipped in alcohol burns, but the cotton dipped in water does not burn.
Through this experiment 1, one of the conditions for combustion can be explained: the substance is flammable.
2. (1) Take a small piece of table tennis and filter paper, clamp them with crucible pliers, and heat them on the flame of an alcohol lamp. After a period of time, observe that both the table tennis and filter paper are burning 2 .
(2) Cut a small piece (same size) from the table tennis ball and the filter paper, place them separately on both sides of a thin copper sheet as shown in Figure 3-S-1, heat the middle of the copper sheet, and the table tennis ball can be observed The fragments burn first, then the filter paper fragments also burn.
Questions and exchanges
1. In the above experiment content 1, what will happen if the heating time is longer on the alcohol lamp? Can you explain why?
AC: Both cotton balls will burn when heated over an alcohol burner for a longer period of time. The reason is that the heat released by the burning of the alcohol in the cotton ball dipped in alcohol is transferred to the cotton ball, causing its temperature to rise to the ignition point of the cotton, causing the cotton to burn; when the water in the cotton ball dipped in water evaporates, the cotton ball will burn in the alcohol. The temperature rises under the heating of the lamp, and the cotton ball is in contact with the air, which also meets the three conditions required for combustion, causing the cotton to burn.
2. What will happen if the table tennis fragments and filter paper fragments in Experiment 2 (2) are replaced with wood chips and coal powder for the experiment? What does it mean?
Communication: The phenomenon is that the wood chips burn first and the coal powder burns last. It means that combustibles with low ignition point are easy to burn, while combustibles with high ignition point are not easy to burn.
Keywords: Free download of PPT courseware for the ninth grade of Chemistry from the People's Education Press, PPT download of combustion conditions, PPT download of fuels and their utilization, .PPT format;
For more information about the PPT courseware "Fuel and the Conditions for its Utilization and Combustion", please click on the PPT tab of "Fuel and its Utilization and Combustion Conditions".
"Conditions of Combustion" Fuel and its Utilization PPT courseware download:
"Conditions of Combustion" Fuel and Utilization PPT courseware download, 13 pages in total. New Lesson Introduction: A candle flame goes out as soon as you fan it; but the more you fan it, the more the fire becomes brighter. Can you explain the reason? When the temperature of burning combustibles drops below the ignition point, the flame will extinguish. Use a fan to fan...
"Exploring the Conditions of Combustion" Quantitative Study of Chemical Reactions PPT:
"Exploring the Conditions of Combustion" Quantitative Study of Chemical Reactions PPT, 18 pages in total. Experiment 1: Dip cotton in alcohol and water respectively, put it on an alcohol lamp to heat for a while, and observe the phenomenon. Experimental phenomenon: Cotton dipped in alcohol can burn, but cotton dipped in water cannot burn. Experimental conclusion...
"Conditions of Combustion" PPT courseware 3:
"Conditions of Combustion" PPT Courseware 3 Question 1: What is combustion? Combustion is usually a violent oxidation reaction between combustibles and oxygen that produces light and heat. Question 2: What are the conditions for combustion? 1. There must be combustible materials; 2. It must be in contact with oxygen (or air)..
File Info
Update Time: 2024-06-26
This template belongs to Chemistry courseware People's Education Press Ninth Grade Chemistry Volume 1 industry PPT template
"Conditions of Combustion" Fuel and its Utilization PPT Teaching Courseware Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "Conditions of Combustion" Fuel and its Utilization PPT Teaching Courseware is enough.
How to use the Windows system template
Directly decompress the file and use it with office or wps
How to use the Mac system template
Directly decompress the file and use it Office or wps can be used
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view: Click to see
How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box
Notice
Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com
"Conditions of Combustion" Fuel and its Utilization PPT Teaching Courseware, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.
(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)
Preview
Related Search:
