The electrochemical cell stops working after sometime because
A. electrode potential of both electrodes becomes zero
B. one of electrodes completely vanishes
C. electrode potential of both electrodes equalizes
D. the reaction reverses its direction
Answer: Option C
Related Questions on Thermochemistry
A. physical change
B. reduction reaction
C. endothermic reaction
D. exothermic reaction
Which law of the thermochemistry introduces the concept of entropy?
A. Second Law
B. Zeroth Law
C. Third Law
D. First Law
Which of the following is a closed system?
A. Jet engine
B. Tea placed in steel kettle
C. Pressure cooker
D. Rocket engine during propulsion
The entropy of perfectly crystalline solid at absolute zero is
A. positive
B. negative
C. Zero
D. not definite

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