Week 1 Day 1 Flashcards

1
Q

What is Specific Conductance?

A

Specific Conductance (SC) is a measure of how well water can conduct an electrical current.

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2
Q

What is resistance?

A

Is the opposition to the passage of an electric current.

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3
Q

Conductance = ?

A

1 / resistance.

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4
Q

What is conductance?

A

The degree to which an object conducts electricity, calculated as the ratio of the current that flows to the potential difference present.

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5
Q

What is conductivity?

A

The degree to which a specified material conducts electricity

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6
Q

What is resistivity?

A

An intrinsic property that quantifies how strongly a given material opposes the flow of electric current.

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7
Q

Cations flow to?

A

Cathode

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8
Q

Anions flow to?

A

Anode

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9
Q

Ions migrate at different _____?

A

Speeds

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10
Q

What is Equivalent Conductance?

A

Conductivity of 1.0 g equivalent weight of solute contained between 2 electrode spaced 1.0 cm apart.

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11
Q

What is the unit of resistance?

A

ohms

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12
Q

What is the unit of conductance?

A

mhos

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13
Q

True or False? The Hydronium Ion has the greatest ion mobility and is the most effective ion for carrying a charge.

A

True

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14
Q

What is Equivalent Conductance for most cations?

A

65 µmho-cm² equivalent-1 @25°C

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15
Q

What is Equivalent Conductance for Hydronium Ion?

A

350 µmho-cm² equivalent-1 @25°C

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16
Q

The resistance to current flow is _______ proportional to the conductor length and __________ proportional to the cross sectional area.

A

Directly, Inversely