A) 498.00
B) 62.25
C) 124.50
D) 249.00
Correct Answer: C
Solution :
\[2{{H}_{2}}{{O}_{2}}(l)2{{H}_{2}}O(l)+{{O}_{2}}(g)\] \[W=-{{P}_{ext}}(\Delta V)=-({{n}_{{{O}_{2}}}})RT\] \[\because \]100 mol \[{{H}_{2}}{{O}_{2}}\]on decomposition will give 50 mol \[{{O}_{2}}\] \[\Rightarrow \]\[W=-(50)(8.3)(300)J\] \[=-124500\,J\] \[W=-124.5kJ\] \[\Rightarrow \]Work done by O2(g) = 124.5 kJ Ans.You need to login to perform this action.
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