Question

The value of $K_p$ for the reaction
$2H_{2}O\left(g\right)+2C{l}_2\left(g\right)\rightleftharpoons 4HCl\left(g\right)+O_2\left(g\right)$ is 0.03 atm at ${427}^{\circ }C$, when the partial pressure are expressed in atmosphere, then the value of $K_c$ for the same reaction is

• A. $5.23\times {10}^{-4}$
• B. $7.34\times {10}^{-4}$
• C. $3.2\times {10}^{-3}$
• D. $5.43\times {10}^{-5}$

Answer 1

The correct option is A $5.23\times {10}^{-4}$

For the given reaction,
$\Delta n_g=4+1-(2+2)=1Weknow,K_p=K_c(RT{)}^{\Delta n_a}Given,K_p=0.03andT=700K\therefore 0.03=K_c(0.082\times 700{)}^1{K}_c=5.23\times {10}^{-4}$