Answer: Ionic association decreases, giving more free ions.
- A Ions move faster due to less friction during normal conditions
- B More ions are present per unit volume as generally observed
- C Ionic association decreases, giving more free ions
- D Solvent viscosity increases in typical laboratory settings
Correct answer: C. Ionic association decreases, giving more free ions
Explanation: On dilution, ion-ion interactions decrease and ionic mobility increases, raising molar conductance.
In a Daniell cell, electrons flow externally from the zinc anode (oxidation) through the voltmeter to the copper cathode (reduction), while the salt bridge completes the circuit.
Concept context
Explore the link between chemical reactions and electricity. Covers galvanic cells, electrolysis, standard electrode potentials, the Nernst equation, and real-world applications like batteries and corrosion.