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Answer:
Approximately .
Explanation:
The specific heat of a material is the amount of energy required to increase unit mass (one gram) of this material by unit temperature (one degree Celsius.)
Calculate the increase in the temperature of this sample:
.
The energy that this sample absorbed should be proportional the increase in its temperature (assuming that no phase change is involved.)
It took of energy to raise the temperature of this sample by
. Therefore, raising the temperature of this sample by
(unit temperature) would take only
as much energy. That corresponds to approximately
of energy.
On the other hand, the energy required to raise the temperature of this material by is proportional to the mass of the sample (also assuming no phase change.)
It took approximately of energy to raise the temperature of
of this material by
. Therefore, it would take only
as much energy to raise the temperature of
(unit mass) of this material by
. That corresponds to approximately
of energy.
In other words, it takes approximately to raise
(unit mass) of this material by
. Therefore, by definition, the specific heat of this material would be approximately
.
Explanation:
Just a few things to remember:
- # of neutrons = Mass number - # protons
- Mass number = # protons + # neutrons
- Atomic Number = # of protons
- # of electrons = # of protons - charge on the atom
- Symbol - use the atomic number to find the element in the periodic table
