Welcome to the Quiz!

This quiz contains 14 questions from a mix of 1 subtopics.

What temperature scale has its zero point at absolute zero?

rankine

fahrenheit

kelvin

celsius

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What is the conversion formula between Celsius (°C) and Kelvin (K)?

T(K) = θ(°C) + 273

T(K) = θ(°C) - 273

θ(°C) = T(K) + 273

θ(°C) = T(K) - 273

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What is the Kelvin temperature equal to 40°C?

308 K

283 K

318 K

313 K

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What happens to the internal energy of a substance as its temperature increases?

it increases

it fluctuates randomly

it decreases

it remains constant

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What causes an increase in the internal energy of a substance?

increased potential energy between particles

both of the above

increased kinetic energy of particles

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What typically happens to kinetic energy during a change of state?

it decreases

it remains the same

it becomes zero

it increases

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When two objects stop exchanging heat energy, what can be said about their final temperatures?

they must be the same

they must be different

more information is needed

no relationship exists

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According to the zeroth law of thermodynamics, if A and C are in thermal equilibrium, and B and C are in thermal equilibrium, what can be concluded?

A and B are in thermal equilibrium

A and B must have different temperatures

no conclusions can be made

more information is needed

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What happens when two objects at different temperatures are brought into thermal contact?

the hotter object becomes hotter

heat flows from higher temperature to lower temperature

the temperatures remain unchanged

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What happens to particle motion as temperature decreases towards absolute zero?

particle motion remains unchanged

particle motion ceases completely

particle motion decreases

particle motion increases

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What is the term used to describe the total kinetic and potential energy of the particles in a system?

internal energy

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What do we call the temperature point where molecular motion stops?

absolute zero

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Define thermal equilibrium in your own words.

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Explain why increasing the temperature of a substance leads to an increase in internal energy.

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