. The four substances HCl, I2, HI, and Cl2, are mixed in a reaction vessel and a
ID: 959742 • Letter: #
Question
. The four substances HCl, I2, HI, and Cl2, are mixed in a reaction vessel and allowed to reach equilibrium in the reaction: 2 HCl (g) + I2 (s) 2 HI (g) + Cl2 (g) Certain changes (specified in the first column in the following table) are then made to this mixture. Considering each change separately, state the effect (increase, decrease, no change) that the change has on the original equilibrium value of the quantity in the second column (or K, if that is specified). The temperature and volume are constant. Change Quantity Effect add HCl amount of HI add I2 amount of Cl2 remove HI amount of Cl2 remove Cl2 amount of HCl add HCl K remove HCl amount of I2 add I2 K
Explanation / Answer
2HCl(g) + I2(s) 2HI(g) + Cl2(g)
Addition of HCl and I2 at eqb. state (or removal of HI and Cl2 at eqb. state)leads to formation of more products i.e more HI & Cl2
Removal of HCl and I2 at eqb. state (or removal of HI and Cl2 at eqb. state)leads to formation of more reactants i.e more I2 & HCl
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