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19 August, 03:31

On a winter day with a temperature of - 10°C, 500g of snow (water ice) is brought inside where the temperature is 18 °C. The snow warms, then melts to water, and then warms to room temperature. What is the total amount of heat energy absorbed by the snow in this process

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  1. 19 August, 03:54
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    215300 J

    Explanation:

    Heat absorbed in raising the temperature of ice by 10 ° C to 0°C

    mass x specific heat x rise in temp

    =.5 x 2100 x 10

    =10500 J.

    Heat required to melt the ice at 0°C

    = mass x latent heat

    =.5 x 334000

    = 167000 J

    Heat required to raise the temperature of water from 0 to 10 degree

    .5 x 4200 x 18

    = 37800 J

    Total heat required

    = 37800 + 167000 + 10500

    = 215300 J
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