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The work done in an open container at 300 K, when 112 g of iron reacts with dil. HCl to from `FeCl_2` is (Value of R : 8.31 J mo`l^( -1)K^(-1)` or 2 cal mo`l ^(-1) K^(-1))`
A. |
1.2 k.cal |
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B. |
4 k. Joul |
C. |
6 k.cal |
D. |
12 k,Joul |