Calorimetry and Thermal Expansion (JEE MAIN & ADVANCED + NEET/AIIMS)
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JEE Mains , Physics
Board: CBSE & State Boards , Language: Hinglish
Contains- 6 Videos
Access Duration- Till 30 Apr 2019
WHAT WILL I LEARN?
Calorimetry means measurement of heat. When a body at higher temperature is brought in contact with another body at lower temperature, the heat lost by the hot body is equal to the heat gained by the colder body, provided no heat is allowed to escape to the surroundings. A device in which heat measurement can be made is called a calorimeter. It consists a metallic vessel and stirrer of the same material like copper or alumiunium. The vessel is kept inside a wooden jacket which contains heat insulating materials like glass wool etc. The outer jacket acts as a heat shield and reduces the heat loss from the inner vessel. There is an opening in the outer jacket through which a mercury thermometer can be inserted into the calorimeter.
We all have common-sense notions of heat and temperature. Temperature is a measure of ‘hotness’ of a body. A kettle with boiling water is hotter than a box containing ice. In this chapter, you will learn what heat is and how it is measured. You will also find out why blacksmiths heat the iron ring before fitting on the rim of a wooden wheel of a bullock cart. You will also learn what happens when water boils or freezes, and its temperature does not change during these processes even though a great deal of heat is flowing
into or out of it.
Calorimetry and Thermal Expansion
- Lecture 01
- Lecture 02
- Lecture 03
- Lecture 04
- Lecture 05
- Lecture 06
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About Ritesh Agarwal
Ritesh Agarwal sir is renowned for his teaching knack in Physics for IIT and Medical preparation. His teaching methodology focuses on strengthening the basic concepts of the subject. He excels in the art of making the students, subject-friendly. Studying Physics from him appears to be the easiest subject for students. He is a ‘concept-builder’ in true sense.