CLASS IX NCERT SCIENCE Chapter 1 Matter in our surroundings
About Me: Gargee Vats Pursing B.tech from G. B. Pant University of agriculture and technology, Uttarakhand Preparing for UPSC CSE. Learning enthusiast. Please do Like , Share and Recommend.
Quick Recap Solid to liquid : 1. process is melting. 2.temperature is melting point. 3. change of physical state. 4.temperature remains same. Liquid to gases : 1. process is boiling. 2.temperature is boiling point. 3. change of physical state. 4.temperature remains same.
Changing temperature SOLID FUSION LIQUID VAPOURISATION GAS Note: when a solid melts its temperature remains same. WHERE DOES THE HEAT GOES THEN???????
LATENT HEAT The heat absorbed is used to change the state by overcoming the force of attraction between particles - latent heat (hidden) 1. Latent heat of fusion. 2. Latent heat of vapourisation.
latent heat SOLID LIQUID
Sensible Vs Latent Heat 60 F [15.6 ] Sensible Heat 212 F [100 c] Latent Heat 212 F [100 ] 212 [100 C]
Changing Pressure Applying pressure and reducing temperature can liquefy gases. Solid CO2 is also known as dry ice as on reducing pressure directly changes to gas without coming in liquid state.
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