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Ice at –20°C is added tp 50 g of water at 40°C. When the temperature of the mixture reaches 0°C, it is found that 20 g of ice is still unmelted. The amount of ice added to the water was close to 
(Specific heat of water = 4.2 J/g/°C)
Specific heat of Ice = 2.1 J/g/°C
Heat of fusion of water at 0°C = 334 J/g)
  • a)
    50 g
  • b)
    40 g
  • c)
    60 g
  • d)
    100 g
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Ice at –20°C is added tp 50 g of water at 40°C.When the ...
Let amount of ice is m gm.
According to principal of calorimeter
heat taken by ice = heat given by water
∴ 20 × 2.1 × m + (m - 20) × 334
= 50 × 4.2 × 40
376 m = 8400 + 6680
m = 40.1 g
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Ice at –20°C is added tp 50 g of water at 40°C.When the temperature of the mixture reaches 0°C, it is found that 20 g of ice is still unmelted. The amount of ice added to the water was close to(Specific heat of water = 4.2 J/g/°C)Specific heat of Ice = 2.1 J/g/°CHeat of fusion of water at 0°C = 334 J/g)a)50 gb)40 gc)60 gd)100 gCorrect answer is option 'B'. Can you explain this answer?
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Ice at –20°C is added tp 50 g of water at 40°C.When the temperature of the mixture reaches 0°C, it is found that 20 g of ice is still unmelted. The amount of ice added to the water was close to(Specific heat of water = 4.2 J/g/°C)Specific heat of Ice = 2.1 J/g/°CHeat of fusion of water at 0°C = 334 J/g)a)50 gb)40 gc)60 gd)100 gCorrect answer is option 'B'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Ice at –20°C is added tp 50 g of water at 40°C.When the temperature of the mixture reaches 0°C, it is found that 20 g of ice is still unmelted. The amount of ice added to the water was close to(Specific heat of water = 4.2 J/g/°C)Specific heat of Ice = 2.1 J/g/°CHeat of fusion of water at 0°C = 334 J/g)a)50 gb)40 gc)60 gd)100 gCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Ice at –20°C is added tp 50 g of water at 40°C.When the temperature of the mixture reaches 0°C, it is found that 20 g of ice is still unmelted. The amount of ice added to the water was close to(Specific heat of water = 4.2 J/g/°C)Specific heat of Ice = 2.1 J/g/°CHeat of fusion of water at 0°C = 334 J/g)a)50 gb)40 gc)60 gd)100 gCorrect answer is option 'B'. Can you explain this answer?.
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