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Calculate ΔH for the reaction- Al + Cr2O...

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.

A

(-463) KJ

B

(-1265) KJ

C

(-2710) KJ

D

(+2730) KJ

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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.

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

When 10g of AI is used for reduction in each of the following alumino thermic reactions. Which reaction would generate more heat and by hwo 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.

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_(2)rarr2Cr+Al_(2)O_(3) is

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