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Question: Answered & Verified by Expert
Combustion of Hydrogen in a fuel cell at 300K is represented as  2 H 2 g + O 2 g 2 H 2 O g .
If H and G are -241.60 kJ mol-1 and -228.40 kJ mol-1 are respectively for H2O  then the value of S for the above process is
ChemistryThermodynamics (C)JEE Main
Options:
  • A 4.4J K -1
  • B 88J K -1
  • C +88 J K -1
  • D 44 J K -1
Solution:
1028 Upvotes Verified Answer
The correct answer is: 88J K -1
S=H - GT=-241.6--228.4300

For 1 mole of H2O=-44 J K -1

Hence, for 2 moles =88 J K -1

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