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Smelting of iron ore takes place through...

Smelting of iron ore takes place through this reaction
`2Fe_(2)O_(3)(s)+3C(s)rarr4Fe(s)+3CO_(2)(g)`
`DeltaH_(f)^(2)` of `Fe_(2)O_(3)` and `CO_(2)` are `-8242KJmol^(-1)` and `-393.7KJmol^(-1)`
The reaction is

A

endothermic

B

exothermic

C

`DeltaH=0`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
`DeltaH =(DeltaH_(t)^(@))("Products") - (Delta_(t)^(@))("Reactants")`
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FIITJEE-THERMODYNAMICS AND THERMOCHEMISTRY -SOLVED PROBLEMS (OBJECTIVE)
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  2. For the process H(2)O(l) (1 "bar", 373 K) rarr H(2)O(g) (1"bar", 373 K...

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  4. Smelting of iron ore takes place through this reaction 2Fe(2)O(3)(s)...

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  5. (1) For the given heat of reaction, (i) C(s)+O(2)(g)=CO(2)(g)+97 kca...

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  12. The heat change accompanying the reaction 2H(2)(g)+O(2)(g) to 2H(2)O...

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  16. One mole of an ideal monoatomic gas at 27^(@) C expands adiabatically ...

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  18. The value of standard free energy change (DeltaG^(@)) of a redox react...

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  20. Among the following , the state funcation (s) is (are)

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