Find the specific heat at constant pressure of hydrogen chloride (HCl) A) 800 J/kg·K B) 700 J/kg·K C) 500 J/kg·K D) 600 J/kg·K
The Correct Answer and Explanation is:
The specific heat at constant pressure (Cp) of hydrogen chloride (HCl) can be calculated using the general knowledge of its thermodynamic properties. For many gases, the specific heat at constant pressure is known from standard tables or experimental data. For hydrogen chloride (HCl), the specific heat at constant pressure (Cp) is approximately 660 J/kg·K.
However, based on the provided options, the closest match would be:
D) 600 J/kg·K.
Explanation:
The specific heat at constant pressure (Cp) is a thermodynamic property that indicates the amount of heat required to raise the temperature of 1 kilogram of a substance by 1 Kelvin while the pressure remains constant. The specific heat of gases can vary depending on the temperature and pressure, but for simplicity, the value is often referenced from standard conditions.
Hydrogen chloride (HCl) is a diatomic molecule, and its specific heat at constant pressure is close to 660 J/kg·K, but since it’s not an exact match with the options provided, we choose the closest value, which is 600 J/kg·K.
To summarize, the specific heat of hydrogen chloride is typically around 660 J/kg·K at standard conditions, and the closest choice in the options is D) 600 J/kg·K.
