Problem: The table below lists the equilibrium concentrations for H 2(g), I2(g), and HI(g) in the given reaction.H2 (g) + I2 (g) ⇌ 2HI (g)Is the reaction is exothermic or endothermic? 

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We’re being asked to determine if the reaction is exothermic or endothermic using the data provided

H(g) + I(g) ⇌ 2HI (g)


According to Le Chatelier’s Principle, if a system (chemical reaction) is at equilibrium and we disturb it, then the system will readjust to maintain its equilibrium state

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Problem Details

The table below lists the equilibrium concentrations for H 2(g), I2(g), and HI(g) in the given reaction.

H(g) + I(g) ⇌ 2HI (g)

Is the reaction is exothermic or endothermic? 

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Le Chatelier's Principle concept. You can view video lessons to learn Le Chatelier's Principle . Or if you need more Le Chatelier's Principle practice, you can also practice Le Chatelier's Principle practice problems.

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