Ashok Kumar Nehra posted an Question
February 17, 2021 • 04:13 am 30 points
  • CSIR NET
  • Physical Sciences

How much mass is lost when 1 kg of water at 0°c tums to ice at 0°c ? 1) 243 x 10-12 kg 2) 3.73 x 10-12 kg 3) o kg 4) 0.005 kg

How much mass is lost when 1 Kg of water at 0°C tums to ice at 0°C ? 1) 243 x 10-12 Kg 2) 3.73 x 10-12 Kg 3) O Kg 4) 0.005 Kg

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    Lekhika

    yeah by option (c) i mean option (3), of any doubt in explaination, feel free to ask

  • Ashok kumar nehra

    thanks but ans is given option 2 3.73*10^-12Kg

  • comment-profile-img>
    Lekhika best-answer

    Hi, actually when water chages to ice then density changes not mass. and density of ice is less than water that is why ice can float on water. density =mass/volume actually water expands on freezing. means volume of ice more then that of water for same mass. so ans to this question should be (c)=0kg

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