Sir NCERT kay in 2 paragraph mai jo kuch bhi likha hai ple

Last updated: 7/3/2023

Sir NCERT kay in 2 paragraph mai jo kuch bhi likha hai ple ase is ko pen paper mai sequence mai likh kr samjha dijiye bcz NCERT ki language mujhe bilkul samjh nhi aa rhi Naturally the resultant reaction will take place when the right hand side in equation 6 30 is negative In A G vs T plot representing the change Fe FeO in Fig 6 6 goes upward and that representing the change C CO C CO goes downward They cross each other at about 1073K At temperatures above 1073K approx the C CO line is below the Fe FeO line AGIA G So above 1073 K in the range of temprature 900 1500 K coke will reduce FeO and will itself be oxidised to CO Let us try to understand this through Fig 6 6 approximate values of AG are given At about 1673K 1400 C 4G value for the reaction Chemistry 150 Around 1400 C 2FeO 2Fe 0 2C 0 200 2FeO 2C 2Fe 200 FeO C Fe CO 1 AG 341kJ mol AG 447kJ mol AG 106kJ mol AG 53kJ mol 2Fe 0 2FeO C O CO 2FeO 2Fe O is 341 kJmol because it is reverse of Fe FeO change and for the reaction 2C 0 2CO 4G is 447 kJmol If we calculate 4 G value for overall reaction 6 27 the value will be 53 kJmol Therefore reaction 6 27 becomes feasible In a similar way the reduction of Fe O and Fe O by CO at relatively lower temperatures can be explained on the basis of lower lying points of intersection of their curves with the CO CO curve