Practicing Success
Identify the INCORRECT pair with respect to the substances and their specific heat capacity (J kg-1K-1) at room temperature and atmospheric pressure. |
Aluminium - 900.0 Water - 1200 Carbon - 506.5 Tungsten - 134.4 |
Water - 1200 |
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. |