1.

The work done by the gas liberated when 50 g of iron (molar mass 55.85 g mol^(-1)) reacts with hydrochloric acid in an open beaker at 25^(@)C

Answer»

ZERO
`-2.2 KJ`
2.2 kJ
0.22 kJ

Solution :`W=-PV=-nRT`
`w=-(50)/(55.85)xx8.314xx298`
`w=-2218.05 =-2.218 kJ`


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