Скачать с ютуб Why is ice at 273 k more effective in cooling than water at the same temperature ?? Class 9 in HINDI в хорошем качестве

Why is ice at 273 k more effective in cooling than water at the same temperature ?? Class 9 in HINDI

In this Science video for class 9 in Hindi we explained why ice at 273 k is more effective in cooling than water at the same temperature. This is a topic of chapter 1 - 'Matter in our Surroundings' of class 9th science from NCERT. As we know 273 k is the same as 0 degree Celsius. Water exist is two states, solid and liquid, at 0 degree Celsius. But 273 k water has more heat energy than 273 k ice. Hence, ice at 273 k more effective in cooling than water at the same temperature. The heat required for ice to convert into water is 3,34,000 joule/kg. This heat energy is known as the latent heat of fusion for water. 🔴 Click here to watch the whole playlist on 'Matter in our Surroundings' for Class 9 :    • 🔴 Matter in our Surroundings - 1 || I...   Previous videos - 🔴 Matter in our Surroundings ( Introduction )    • 🔴 Matter in our Surroundings - 1 || I...   🔴 States of Matter    • 🔴 States of Matter || Matter in our S...   🔴 Change in State of Matter    • 🔴 Change in State of Matter || Matter...   🔴 Evaporation    • 🔴 Evaporation || Matter in our Surrou...   🔴 How does Evaporation cause cooling    • How does Evaporation cause cooling ||...   🔴 Why should we wear cotton clothes in summer    • Why should we wear Cotton Clothes in ...   🔴 Why do we see water droplets on the outer surface of a glass containing ice-cold water ?    • Why do we see water droplets on the o...   🔴 Why does a Desert Cooler cool better on a hot dry day    • Why does a Desert Cooler cool better ...   🔴 Why do Naphthalene balls disappear with time without leaving any solid?    • Why do Naphthalene Balls disappear wi...   🔴 Why are we able to sip hot tea or milk faster from a saucer rather than a cup    • Why are we able to sip hot tea or mil...   🔴 Why does our palm feel cold when we put some acetone or petrol or perfume on it    • Why does our palm feel cold when we p...