Calculate `Delta H` for the reaction `Al + Cr_2O_3 rarr Cr +Al_2O_3` When enthalpy of formation of `Al_2O_3` and `Cr_2O_3`, are -1596 kJ and -1133 kJ respectively.

Calculate ΔH for the reaction- Al + Cr_2O_3 → Cr + Al_2O_3 When enthalpy of formation of Al_2O_3 and Cr_2O_3 are -1596 kJ and -1133 kJ respectively.

What is the enthalpy change for the given reaction, if enthalpies of formation of Al_(2)O_(3) and Fe_(2)O_(3) are -"1670 kJ mol"^(-1) and -"834 kJ mol"^(-1) respectively? Fe_(2)O_(3) +2Al rarr Al_(2)O_(3)+2Fe

The nature of CrO and Cr_2O_3 is respectively

When 10g of AI is used for reduction in each of the following alumino thermic reactions.Which reaction would generate more heat & by how much? a. 2AI + Cr_(2)O_(3) rarr AI_(2)O_(3) +2Cr b. 2AI +Fe_(2)O_(3) rarr AI_(2)O_(3) +2Fe Standard heat of formation of AI_(2)O_(3), Cr_(2)O_(3) , and Fe_(2)O_(3) are -1676 kJ, -1141 kJ , and -822.2 kJ , respectively.

What is the nature of Al_(2)O_(3) and B_(2)O_(3) ?

The equation 2Al(s)+ 3/2O_2 to Al_2O_3(s) shows that

The enthalpies of formation of Al_(2)O_(3) and Cr_(2)O_(3) are -1596KJ and -1134KJ respectively. DeltaH for the reaction 2Al+Cr_(2)O_(3)rarr2Cr+Al_(2)O_(3) is

Delta H_(f)^(@) for Al_(2)O_(3) is -1670 KJ. Calculate the enthalpy change for the reaction 4Al+3O_(2)rarr 2Al_(2)O_(3)

Complete and balanced the equations: Al_(2)O_(3) + NaOH rarr ____+ ____

Standard free energy of formation for Al_(2)O_(3) and Cr_(2)O_(3) at 1273 K are -827 kJ mol^(-1) (of O_(2)) and -540 kJ mol^(-1) (of O_(2)) , respectively. Al can reduce Cr_(2)O_(3) to Cr since, Delta_(r) G^(Ө) is negative.