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A mixture of H_2,N_2 and NH_3 with molar concentrations 5.0xx10^(-3) mol L^(-1) , 4.0xx10^(-3) mol L^(-1) and 2.0xx10^(-3) mol L^(-1)respectively was prepared and heated to 500 K. The value of K_c for the reaction: 3H_2(g)+N_2(g) hArr 2NH_3(g) at this temperature is 60. Predict whether ammonia tends to form or to decompose at this stage of concentration. |
| Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :Reaction quotient, `Q_c` for the reaction, <br/> `N_2(g) +3H_2(g) hArr 2NH_3(g)` <br/> `Q_c=([NH_3]^<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)/([N_2][H_2]^3)` <br/> `[NH_3]=2.0xx10^(-3) <a href="https://interviewquestions.tuteehub.com/tag/mol-1100196" style="font-weight:bold;" target="_blank" title="Click to know more about MOL">MOL</a> L^(-1) , [H_2]=5.0xx10^(-3) mol L^(-1)`<br/> `[N_2]=4.0xx10^(-3) mol^(-1)`<br/> `Q_c=(2.0xx10^(-3))^2/((4.0xx10^(-3))(5.0xx10^(-3))^(3))=8.0xx10^3 L^2 mol^(-2)`<br/> `K_c=60` <br/>Since `Q_c > K_c `, reaction will <a href="https://interviewquestions.tuteehub.com/tag/go-468886" style="font-weight:bold;" target="_blank" title="Click to know more about GO">GO</a> in the <a href="https://interviewquestions.tuteehub.com/tag/left-1070879" style="font-weight:bold;" target="_blank" title="Click to know more about LEFT">LEFT</a> direction and ammonia will decompose.</body></html> | |