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Attempts 127

Which names the approximate freezing point of water?

  1. A
    0 K
  2. B
    100 K
  3. C
    273 K
  4. D
    373 K

Topic Flashcards

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Question

What is the exact formula to convert a temperature from degrees Celsius (°C) to Kelvin (K)?

Answer

K = °C + 273. (Therefore, 0 °C = 273 K).

Question

What does a temperature of 0 Kelvin (0 K) represent, and what is its equivalent in degrees Celsius?

Answer

0 K represents absolute zero, the theoretical point where all molecular motion ceases. It is equal to -273 °C.

Question

On the Kelvin scale, what are the approximate temperatures for the freezing point and boiling point of water?

Answer

Freezing point: 273 K. Boiling point: 373 K.

Question

Why is the Kelvin scale considered an "absolute" temperature scale, unlike Celsius or Fahrenheit?

Answer

Its zero point (0 K) is based on a fundamental physical minimum (absolute zero), not an arbitrary point like the freezing point of water.

Question

If the temperature of a substance is 300 K, is it above or below the freezing point of water? By how many degrees Celsius?

Answer

It is above freezing. 300 K - 273 = 27 °C.

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