Evaporation| Cooling Effect | Matter in our Surroundings #3 | Class 9 Science
42.7 هزار بار بازدید -
4 سال پیش
-
➡️ Timestamp:
➡️ Timestamp:
0:00 - Introduction
2:00 - Evaporation
2:19 - Why evaporation take place?
3:14 - Rate of evaporation
5:58 - cooling effect
7:06 - Cooling effect : Example 1
9:04 - Cooling effect : Example 2
9:39 - Why wear cotton clothes in summer?
10:35 - Why water droplets on outer surface of ice cold water?
11:55 - Soucer vs Cup
13:13 - Why smell of perfume sitting several metres away.
13:46 - what produces more severe burns, boiling water or steam
Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase. Evaporation is the process by which a liquid or solid is transformed into vapour. In this video, we will cover:
1. Evaporation
2. Why evaporation takes place?
3. Kinetic energy of all particles are not same. Liquid particles on surface have higher kinetic energy are able to break away the force of attraction with other particle and thus get converted into vapour.
4. Cooling effect.
5. Why water droplets on outer surface of the glass containing ice-cold water
6. Why wear cotton clothes in summers.
7. Saucer versus cup
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Roshni has been invited by Google to speak at Global Education Symposium 2017 held at Google Headquarters, California. Limca Book of Records also recognised our work.
➡️Watch Roshni's Tedx Talk to know more about her journey: The magic passion can create | Roshni...
#LearnoHubScience #CBSEClass9Science #SabkoSamajhAayega
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0:00 - Introduction
2:00 - Evaporation
2:19 - Why evaporation take place?
3:14 - Rate of evaporation
5:58 - cooling effect
7:06 - Cooling effect : Example 1
9:04 - Cooling effect : Example 2
9:39 - Why wear cotton clothes in summer?
10:35 - Why water droplets on outer surface of ice cold water?
11:55 - Soucer vs Cup
13:13 - Why smell of perfume sitting several metres away.
13:46 - what produces more severe burns, boiling water or steam
Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase. Evaporation is the process by which a liquid or solid is transformed into vapour. In this video, we will cover:
1. Evaporation
2. Why evaporation takes place?
3. Kinetic energy of all particles are not same. Liquid particles on surface have higher kinetic energy are able to break away the force of attraction with other particle and thus get converted into vapour.
4. Cooling effect.
5. Why water droplets on outer surface of the glass containing ice-cold water
6. Why wear cotton clothes in summers.
7. Saucer versus cup
LearnoHub.com (formerly called ExamFear Education) is a Free Education platform with more than 6000 videos on Physics, Chemistry, Maths, Biology, English, Science experiments, tips & tricks and motivational videos for Classes 6 to 12. Learn for Free!
➡️ Website: http://www.learnohub.com
➡️ Facebook: https://bit.ly/LearnoHubFB
➡️ Instagram: https://bit.ly/LearnoHubInsta
➡️ Get Our Videos in Pendrives: Class 9 - https://bit.ly/LHPenDrive9
➡️ Get_Notes: https://www.examfear.com/notes/Class-...
About the Teacher:
Roshni Mukherjee, the Founder-Educator at LearnoHub has been building this free learning platform since 2011. She has been recognised as one of the 100 Women Achievers of India by the Ministry of Women & Child Development and felicitated by the President of India in 2016.
Roshni has been invited by Google to speak at Global Education Symposium 2017 held at Google Headquarters, California. Limca Book of Records also recognised our work.
➡️Watch Roshni's Tedx Talk to know more about her journey: The magic passion can create | Roshni...
#LearnoHubScience #CBSEClass9Science #SabkoSamajhAayega
Join us and let us together build this Free Learning Platform!
We will surely ensure that you enjoy the real learning with us.
Copyright © All rights reserved. LearnoHub | ExamFear Education
4 سال پیش
در تاریخ 1399/02/25 منتشر شده
است.
42,750
بـار بازدید شده