Raoult's law becomes a special case of Henry's law when

Q. If $p,q,r,s,t$ are the roots of the equation $x^5-1=0$, then $p^{10}+q^{10}+r^{10}+s^{10}+t^{10}=$

Q. Solubility of a gas X in liquid Y is given by Henry's law written as $P=K_H\times x$ . Where $K_H$ is Henry constant, P is partial pressure of the gas and x is mole fraction of gas in liquid. Which of the following is incorrect about $K_H–$

Q. Show that $p-1$ is a factor of $p^{10}-1$ and also $p^{11}-1$.