High altitude mountain climbers do not eat snow, but always melt it first with a stove. To see why, calculate energy absorbed from your body if you: eat 1.0kg of -15 degrees Celsius snow which your body warms to body temperature of 37 degrees Celsius ?

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dalematealreypq3a · Accepted Answer

Heat required to change       1.0         k    g   ice at       -          15      ∘        C   to Ice at             0      ∘        C         =    m          s              i        c        e              Δ    T    =    1    ×          (      2.108      ×              10        3            )        ×    15    =    3.162    ×          10      4             J  Heat needed to transition from one state to       1.0         k    g   ice to water      =    m          L              i        c        e              =    1    ×    3.34    ×          10      5        =    3.34    ×          10      5             J  Heat required to change       1.0         k    g   water at             0      ∘        C   to water at             37      ∘        C         =    m          s              w        a        t        e        r              Δ    T    =    1    ×          (      4.187      ×              10        3            )        ×    37    =    1.549    ×          10      5             J  Total heat required       =    3.162    ×          10      4        +    3.34    ×          10      5        +    1.549    ×          10      5            =    5.21    ×          10      5             J

High altitude mountain climbers do not eat snow, but always melt it first with a stove. To see why, calculate energy absorbed from your body if you: eat 1.0kg of -15 degrees Celsius snow which your body warms to body temperature of 37 degrees Celsius ?

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