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Q1. In a container of negligible mass 140 g of ice initially at -15°C is added to 200g of water that has a temperature of 40°C.If no heat is lost to the surroundings ,what is the final temperature of the system and masses of water and ice in the mixture. Q2.Equal masses of ice(at 0°C) and water are in contact .Find the temperature of water just needed to just melt the complete ice. ANS-(1)0°C,mass of ice is 54g and that of water is 286g (2)80°C Note-I have just started thermal physics,so please dxplain with full steps.THANX.


Q1. In a container of negligible mass 140 g of ice initially at -15°C is added to 200g of water that has a temperature of 40°C.If no heat is lost to the surroundings ,what is the final temperature of the system and masses of water and ice in the mixture.

Q2.Equal masses of ice(at 0°C) and water are in contact .Find the temperature of water just needed to just melt the complete ice.

ANS-(1)0°C,mass of ice is 54g and that of water is 286g
(2)80°C

Note-I have just started thermal physics,so please dxplain with full steps.THANX.


Grade:9

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