Answer:
The percent error of the provided specific heat value for iron is approximately 0.445%.
Step-by-step explanation:
To calculate the percent error of the specific heat value, we need a reference value to compare it against. The specific heat of iron is actually around 0.449 J/g°C at room temperature (25°C), so I'll use that as the reference value for this calculation.
The formula for percent error is:
Percent Error = ((|Experimental Value - Accepted Value|) / Accepted Value) * 100
Given:
Experimental Value = 0.451 J/g°C (provided specific heat)
Accepted Value = 0.449 J/g°C (reference specific heat)
Now, plug in the values:
Percent Error = ((|0.451 - 0.449|) / 0.449) * 100
Percent Error ≈ (0.002 / 0.449) * 100
Percent Error ≈ 0.445 %
So, the percent error of the provided specific heat value for iron is approximately 0.445%.
Regarding whether the metal is iron or not, we can compare the calculated specific heat with known values for various metals. The specific heat of 0.451 J/g°C is quite close to the accepted value for iron (0.449 J/g°C). This suggests that the metal in question could very likely be iron, given that the percent error is low. However, to definitively identify the metal, additional information such as physical appearance, chemical behavior, and any other available data would be needed.