How many elements are found in the following chemical equation? K + Cl → KCl A. 1 B. 2 C. 3 D. 0
2 answers:
Answer: Option (B) is the correct answer.
Explanation:
An element is defined as a substance that contains same type of atoms.
For example, element K contains only atoms of potassium.
Whereas a substance in which two or more different elements chemically combine together in a fixed ratio by mass is known as a compound.
For example, KCl contains atoms of K and Cl in 1 : 1 ratio. Hence, it is a compound.
Therefore, in the chemical reaction, there are only two elements which are K and Cl.
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Answer:
The chemical potential of 2-propanol in solution relative to that of pure 2-propanol is lower by 2.63x10⁻³.
Explanation:
The chemical potential of 2-propanol in solution relative to that of pure 2-propanol can be calculated using the following equation:
<u>Where:</u>
<em>μ (l): is the chemical potential of 2-propanol in solution </em>
<em>μ° (l): is the chemical potential of pure 2-propanol </em>
<em>R: is the gas constant = 8.314 J K⁻¹ mol⁻¹ </em>
<em>T: is the temperature = 82.3 °C = 355.3 K </em>
<em>x: is the mole fraction of 2-propanol = 0.41 </em>
Therefore, the chemical potential of 2-propanol in solution relative to that of pure 2-propanol is lower by 2.63x10⁻³.
I hope it helps you!