Sulfur trioxide is produced in the gas phase according to

CHEMISTRY · Single correct · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)

Problem

Sulfur trioxide is produced in the gas phase according to 2 SO2 (g)+O2 (g)⇌2 SO3 (g)2\,\text{SO}_2\,(g) + \text{O}_2\,(g) \rightleftharpoons 2\,\text{SO}_3\,(g). At a given temperature the system is at equilibrium with partial pressures PSO2=0.40 atmP_{\text{SO}_2}=0.40\,\text{atm}, PO2=0.20 atmP_{\text{O}_2}=0.20\,\text{atm}, and PSO3=0.60 atmP_{\text{SO}_3}=0.60\,\text{atm}. The volume of the container is then compressed to one-half its original value, and the temperature is held constant. After the system reaches a new equilibrium, what is the partial pressure of SO3\text{SO}_3 closest to? (a) 1.60 atm1.60\ \text{atm} (b) 1.32 atm1.32\ \text{atm} (c) 0.96 atm0.96\ \text{atm} (d) 1.20 atm1.20\ \text{atm}

Related theory

Browse the problem library