For parts of the free-response question that require calculations, clearly show the method used and the steps involved in arriving at your answers. You must show your work to receive credit for your answer. Examples and equations may be included in your answers where appropriate.   Gas Initial Concentration (M) H2 0.030 I2 0.015 HI ? Samples of three gases, H2(g), I2(g), and HI(g), were combined in a rigid vessel. The initial concentrations of H2(g) and I2(g) are given in the table above. Equilibrium was established at a certain temperature according to the following chemical equation. H2(g)+I2(g)⇄2HI(g)ΔH°rxn=−9.4kJ/molrxn;Kc=49 After equilibrium was established, the concentration of H2(g) was 0.020M. In the following empty box, draw an appropriate number of each type of molecule to represent a possible new equilibrium at the lower temperature.

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For parts of the free-response question that require calculations, clearly show the method used and the steps involved in arriving at your answers. You must show your work to receive credit for your answer. Examples and equations may be included in your answers where appropriate.

 

Gas Initial Concentration (M)
H2 0.030
I2 0.015
HI ?

Samples of three gases, H2(g), I2(g), and HI(g), were combined in a rigid vessel. The initial concentrations of H2(g) and I2(g) are given in the table above.

Equilibrium was established at a certain temperature according to the following chemical equation.

H2(g)+I2(g)⇄2HI(g)ΔH°rxn=−9.4kJ/molrxn;Kc=49

After equilibrium was established, the concentration of H2(g) was 0.020M.

In the following empty box, draw an appropriate number of each type of molecule to represent a possible new equilibrium at the lower temperature.

 

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