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Chemistry Level 1

To which of the following reactions is Le-Chatelier's principle not applicable?

To learn about Le Chatelier's principle check this wiki .
F e ( s ) + S ( s ) ⇌ F e S ( s ) \ce{Fe(s)} + \ce{S(s)} \rightleftharpoons \ce{FeS(s)} 3 H X 2 ( g ) + N X 2 ( g ) ⇌ 2 N H X 3 ( g ) 3\ce{H_2(g)} + \ce{N_2(g)} \rightleftharpoons 2\ce{NH_3(g)} H X 2 ( g ) + I X 2 ( g ) ⇌ 2 H I ( g ) \ce{H_2(g)} + \ce{I_2(g)} \rightleftharpoons 2\ce{HI(g)} N X 2 ( g ) + O X 2 ( g ) ⇌ 2 N O ( g ) \ce{N_2(g)} + \ce{O_2(g)} \rightleftharpoons 2\ce{NO(g)}

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Gautam Sharma by Gautam Sharma , 23, India

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6 solutions

Hadia Qadir
Aug 30, 2015

in a chemical reaction, LCP will be applicable,when the eqillibrium moment of the reaction will increase or decrease for the influence of TEMPARETURE, PRESSURE, CONCENTRATION.......BUT in the "A" reaction all the elements are solid... so PRESSURE THEORY is not applicable for this, cause PRESSURE THEORY is only applicable for GAS.... SO LCP IS NOT APPLICABLE FOR "A"..........................

2 Helpful 0 Interesting 0 Brilliant 0 Confused

So what about the influence of temperature ¿

Harish Sasikumar - 5 years, 5 months ago
Prakhar Bindal
Jul 15, 2015

The Question Is Simple But Your Wiki Is Awesome!!!.

Keep Up the good work

By the way hint to the problem is that all the reacting as well as forming species are in solid state(we assume the active masses of pure solids and liquids to be 1 )

2 Helpful 0 Interesting 0 Brilliant 0 Confused

Thanks!But the wiki is yet incomplete and i will complete it. This question was mainly for beginners in equilibrium and because a chemistry section is coming up so it needs some questions.

Gautam Sharma - 5 years, 11 months ago

So what about the influence of temperature?

Harish Sasikumar - 5 years, 5 months ago

Le-Chatelier's principle is only for gas phase not for solid or liquid.

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Rajdeep Bharati
Jan 9, 2016

We usually need to consider the number of gaseous moles while applying Le Chatelier's Principle. Hence, option 1 is correct.

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Vivek Upadhyay
Aug 25, 2015

Le Chatelier 's principle is only applicable for gaseous state (short trick)

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Calvin Rieder
Aug 25, 2015

One can ignore the effects of equilibrium for solid reactants and products.

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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