Question 11
NUMERICALMEDIUM
Considering ideal gas behavior, the expansion work done (in kJ) when 144 g of water is electrolyzed completely under constant pressure at 300 K is ______.
Use: Universal gas constant (R) = 8.3 ; Atomic mass (in amu): H = 1, O = 16
Correct Answer: -29.88
Detailed Solution
Reaction: . Molar mass of . Moles of . From stoichiometry, 2 moles of liquid water produce 3 moles of gas. So, 8 moles of liquid water produce of gas. Work done (for expansion against constant pressure). .
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