Question

In the graph given below, what does the slope of the line represent'?

• A. Partial pressure of the gas in vapour phase $(p)$
• B. Mole fraction of gas in the solution $(\chi)$
• C. Henry's law constant $\left(K_{ H }\right)$
• D. All of the above

Answer 1

Answer: (C)

On comparing $p=K_{ H } \cdot x$ with equation of straight line viz
$y=m x+c, m=K_{ H }$ (Here, $m=$ slope of the line).
Thus, Henry's law constaint is represented by the slope of the line.