7. Can the heat capacity of
water be considered small or
large? What isthe biological
significance of that
characteristic?

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From it is known that the
quantity of exchanged heat () is equal
to the mass () multiplied by the
specific heat of the substance ()
multiplied by the variation of
temperature (), Q= m.c.ΔT., and that
heat capacity is Q/T, hence, m.c. Heat
capacity, however, relates to a specific
body, since it considers mass,whereas
specific heat relates to the general
substance. Therefore it is more correct
to refer to specific heat in this problem.

Water has a specific heat of
which means that 1 oC per gram is
changed in its temperature with the
addition or subtraction of 1 cal of
energy. This is a very elevated value
(for example, the specific heat of
is 0,58 cal/g.oC, and , a
metal, has a specific heat of 0,033
cal/g. oC) making water an excellent
thermal against variations of
temperature. Even if sudden external
temperature changes occur, the internal
biological conditions are kept stable in
which contain enough water.

specific heat is one of the most
important water properties.