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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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bblegal bblegal
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3 years ago
A mixture of hydrogen and chlorine remains unreacted until it is exposed to ultraviolet light from a burning magnesium strip. Then the following reaction occurs very rapidly:
 
 
 
H2(g) + Cl2(g) → 2HCl(g)
ΔG = –45.54 kJ
 
 
 
 
ΔH = –44.12 kJ
 
 
 
 
ΔS = –4.76 J/K
Which of the following is consistent with this information?



▸ The reactants are thermodynamically more stable than the products.

▸ The reaction has a small equilibrium constant.

▸ The ultraviolet light raises the temperature of the system and makes the reaction more favorable.

▸ The negative value for ΔS slows down the reaction.

▸ The reaction is spontaneous, but the reactants are kinetically stable.
Textbook 
Chemistry: An Atoms First Approach

Chemistry: An Atoms First Approach


Edition: 3rd
Authors:
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KKRulesKKRules
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