Identify the INCORRECT pair with respect to the substances and their specific heat capacity (J kg-1K-1) at room temperature and atmospheric pressure.
Answer & explanation
Correct answer: option 2
The correct answer is option 2. Water - 1200.
The incorrect pair is Water-1200.
Here's why:
Aluminum \((900 J kg^{-1}K^{-1})\): This value is within the typical range for aluminum's specific heat capacity (around \(897 J kg^{-1}K^{-1}\)).
Carbon \((506.5 J kg^{-1}K^{-1})\): This value is close to the specific heat capacity of graphite, a common form of carbon (around \(859 J kg^{-1}K^{-1}\)).
Tungsten \((134.4 J kg^{-1}K^{-1})\): This value falls within the range for tungsten's specific heat capacity (around \(130 J kg^{-1}K^{-1}\)).
Water \((1200 J kg^{-1}K^{-1})\): The specific heat capacity of water at room temperature and atmospheric pressure is actually around \(4187 J kg^{-1}K^{-1}\). This is significantly higher than the listed value of \(1200 J kg^{-1}K^{-1}\).
Therefore, the specific heat capacity value provided for water is incorrect, making it the incorrect pair.