Heat MCQ 3
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Questions and Answers

What is the unit of temperature?

  • Kelvin (correct)
  • Celsius
  • Joule per Kilogram Kelvin
  • Joule per Kelvin

If the temperature in Kelvins is 300K, what would be the temperature in Celsius?

  • 573.15°C
  • 26.85°C (correct)
  • -273.15°C
  • 300°C

Which process involves water changing into steam?

  • Freezing to ice
  • Evaporating into steam (correct)
  • Condensing into water
  • Melting into a liquid

What is Latent Heat?

<p>The heat required to change state without a change in temperature (C)</p> Signup and view all the answers

What is Heat Capacity?

<p>The amount of heat required to raise the temperature by 1 K (A)</p> Signup and view all the answers

What is the formula for heat/energy required to raise the temperature of an object by a certain amount of degrees/kelvins?

<p>mcΔθ (C)</p> Signup and view all the answers

What is the specific latent heat of vaporisation related to?

<p>Changing a liquid to a gas (A)</p> Signup and view all the answers

What is the U-value of a structure related to?

<p>Amount of heat energy conducted per second through 1 m2 of the structure (C)</p> Signup and view all the answers

Which method of heat transfer involves electromagnetic waves?

<p>Radiation (D)</p> Signup and view all the answers

What characteristic does a good insulator have in relation to U-value?

<p>Low U-value (B)</p> Signup and view all the answers

What does the U-value measure for a structure?

<p>Amount of heat energy conducted per second with a temperature difference maintained (A)</p> Signup and view all the answers

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