Xenon and fluorine will react to form binary compounds when a mixture of these two gases is heated to 400C in a nickel reaction vessel. A 100.0-mL nickel container is filled with xenon and fluorine, giving partial pressures of 1.24 atm and 10.10 atm, respectively, at a temperature of 25C. The reaction vessel is heated to 400C to cause a reaction to occur and then cooled to a temperature at which F2 is a gas and the xenon fluoride compound produced is a nonvolatile solid. The remaining F2 gas is transferred to another 100.0-mL nickel container, where the pressure of F2 at 25C is 7.62 atm. Assuming all of the xenon has reacted, what is the formula of the product? 91
reaction : Qualitatively predicting entropy Rule I: ↳ rises when form from solids Kor liquids Entropy gases : ex Zhls ) t ZHCI ( aq ) → Znclzcadq ) t Hzcg ) Srxn Rule 2 : ↳ Entropy rises when mixtures are formed from pure substances . ex : Nz t (g) → 2 NO , (g) (g) , Srxn Rule 3 :
