Published by:
CGP EDU Academic Team
Published on: August 14, 2026
At 
of iron reacts with 
to form 
. The evolved hydrogen gas expands against a constant pressure of 1 bar. The work done by the gas during this expansion is 
.
(Round off to the Nearest Integer)
[Given: 
. Assume, hydrogen is an ideal gas]
[Atomic mass off 
is 
]
Text Solution
Verified by ExpertsThe correct answer is:
2218
(2218)
Chemical reaction is
bar
Work done for 
gas
Work done for 
of gas
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