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Heat and Thermodynamics question

2019 · 11 Jan · Shift 1 · Q67
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Heat and Thermodynamics question

2019 · 11 Jan · Shift 1 · Q67

JEE MainPhysicsHeat and ThermodynamicsMCQ+4 / −1
Ice at –20oC is added to 50 g of water at 40oC. When the temperature of the mixture reaches 0oC, 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 = 4.2J/g/oC Specific heat of Ice = 2.1J/g/oC Heat of fusion of water at 0oC= 334J/g)
  1. A
    100 g
  2. B
    60 g
  3. C
    50 g
  4. D
    40 g
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