A $5.0$ -V Battery Storing $43.0$ KJ of Energy Supplies $1.5$ A of Current to a Circuit

question 18

Multiple Choice

A $5.0$ -V battery storing $43.0$ kJ of energy supplies $1.5$ A of current to a circuit. How much energy does the battery have left after powering the circuit for $1.0$ h.?

• A) \(41 \mathrm {~kJ}\)
• B) \(43 \mathrm {~kJ}\)
• C) \(27 \mathrm {~kJ}\)
• D) \(16 \mathrm {~kJ}\)

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Definitions:

Molarity

A concentration measurement defined as the moles of a solute per liter of solution.

KBr

Potassium bromide, a chemical compound used in photography, as a sedative in veterinary medicine, and in analytical chemistry.

Molarity

A concentration unit used to describe the amount of solute in moles divided by the volume of the solution in liters.

NaBr

Sodium Bromide, a chemical compound with the formula NaBr, used in medicine, as a sedative or anticonvulsant, and in photographic processing.