Physics – First Law of Thermodynamics | Class 12 Notes with Solved Examples & Diagrams

First Law Of Thermodynamics


Temperature 🌡️
Temperature And Heat Relation


Hypothetical Fluid Idea



Thermal Energy



Applications Of First Law Of Thermodynamics
+ Practice Questions


NOTESBYTHATSTUDYGIRL




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Example #3 Page 1 of 14

, Temperature
THATSTUDYGIRL


Temperature: Is the Measure Of Average Kinetic Energy of particles In A System

Temperature Is Measured In Three Scales
Do You Know?
SI UNIT OF TEMPERATURE: KELVIN (K)
Centigrade Or Celsius Scale ( By Anders Celsius)
ABSOLUTE ZERO (0 K): –273.15 °C =
459.67 °F

Fahrenheit Scale ( By Daniel Fahrenheit) ABSOLUTE ZERO IS A THEORETICAL
IDEA — IT IS THE POINT
WHERE PARTICLES HAVE MINIMUM
POSSIBLE ENERGY,
Kelvin Scale ( By James Lord Kelvin) BUT IT HAS NEVER BEEN REACHED
EXPERIMENTALLY.




Formulas
Formulas

CELSIUS → FAHRENHEIT

FAHRENHEIT → CELSIUS

KELVIN → FAHRENHEIT

CELSIUS → KELVIN

KELVIN → CELSIUS

FAHRENHEIT → KELVIN




Kelvin Scale Celsius Scale Fahrenheit Scale




Boiling Point Of Water 373K 100°C 212°F




Freezing Point Of Water 273 K 0°C 32°F




Absolute Zero 0K
-273.15°C -459.67°F




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Example #3 Page 2 of 14