Which of the following specific mixtures of gases does NOT obey Dalton's Law of partial pressures wh — States of Matter and Gaseous State Chemistry Question

💡 Solution & Explanation

Dalton's Law of partial pressures strictly applies only to a mixture of non-reacting gases. Chlorine ($Cl_2$) and sulfur dioxide ($SO_2$) react at room temperature to form sulfuryl chloride ($SO_2Cl_2$). Because they undergo a chemical reaction, the number of moles changes, and Dalton's Law is rendered invalid.