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HOW TO MAKE ICE WITHOUT REFRIGERATOR

Hello students, In this video, we have discussed about HOW TO MAKE KULFI (ICE). Salt Lowers the Temperature of Ice Water: When you mix ice and salt in the ratio 3:1 the temperature can drop from freezing or 0 °C to as low as -21 °C. That's a big difference! Why does the temperature get lower? When ice melts, energy (heat) must be absorbed from the environment to overcome the hydrogen bonding holding the water molecules together. Melting ice is an endothermic process whether there is salt involved or not, but when you add the salt you alter how readily water can refreeze back into ice. In pure water, ice melts, cools the surroundings and water, and some of the energy that is absorbed is released again as the water returns to ice. At 0 °C ice melts and freezes at the same rate, so you don't see ice melting at this temperature. Salt lowers the freezing point of water via freezing point depression. Among other processes, the ions from the salt get in the way of water molecules aligning to crystallize into ice. When salted ice melts, the water can't refreeze as readily because the saline isn't pure water anymore and because the freezing point is colder. As more ice melts, more heat is absorbed, bringing the temperature down even lower. This is great news if you want to make ice cream and don't have a freezer. If you put the ingredients in a bag and place the bag in a bucket of salted ice, the drop in temperature will give you a frozen treat in next to no time! I hope you will like the video. If you have any questions please let me know in the comments section. I will try to clarify as soon as possible. #ice_and_salt_mixture #JEO #salt_lowers_the _temperature_of_ice_water #ncert_activity #ice_without_refrigerator To know more about JANA EDUCATIONAL ORGANISATION contact me by my social media links below👇 📎Link for my social handles to clear your doubts 👇 📷 Instagram:   / debajyoti3429   🤗 Facebook: https://www.facebook.com/profile.php?... 📎Some previous videos 👇 1. Show that non metalic oxides are acidic in nature :    • Show that non metalic oxides are acid...   2. Test of protein:    • Test of protein   3. CRYSTALLIZATION OF SALT:    • CRYSTALLIZATION OF SALT   4. centripetal and centrifugal force:    • Centripetal and Centrifugal force   5. REFRACTION OF LIGHT THROUGH PRISM:    • REFRACTION OF LIGHT THROUGH PRISM   6. OXYGEN IS EVOLVED DURING PHOTOSYNTHESIS:    • OXYGEN IS EVOLVED DURING PHOTOSYNTHESIS   7. পার্থেনিয়াম-একটি বিষাক্ত আগাছা:    • পার্থেনিয়াম-একটি বিষাক্ত আগাছা   8. IGNITION TEMPERATURE:    • IGNITION TEMPERATURE   9. Newton’s disc:    • Newton’s disc by Subhadeep Maity of c...   IF YOU FIND THIS USEFUL, LIKE SHARE AND COMMENT. IF YOU ARE NEW THEN KINDLY SUBSCRIBE. THANKS FOR WATCHING.