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Why is the specific heat capacity of ice different from that of water even though they are made of the same material?
Wiki User
∙ 16y ago
because one is solid and the other liquid. in solid form a molecule is restricted by how many ways it can move without breaking the structure. in liquid form it has more directions to move and can there for absorbe more energy before change form which is what specific heat capacity is all about.
you must also take into acount the different bonds between the water molecules is solid vs liquid form and the fact that ice contains air as well as water
Wiki User
∙ 16y ago
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What will be the Specific heat during an isothermal process?
That's kind of a trick question. Specific heat - also known as "heat capacity" is the energy required to change the temperature by a fixed amount. In the case of an isothermal process, the temperature isn't changing. Since specific heat is defined as (δH/δT), isothermal heat capacity would be (δH/δT)T which means, in English, the change in enthalpy with a change in temperature when the temperature isn't changing... you see the problem. If δT = 0, then δH/δT = ±∞ (positive if heat is added to the system to keep the temperature constant, negative if heat was removed to keep it isothermal) You could write some equations such that the heat capacity becomes a term in the equation. What you will generally find though is that the heat capacity is multiplying a dT term and when dT is zero, that term drops out and heat capacity is irrelevant for the calculation.
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