Celsius, Fahrenheit, Kelvin

• What is the Celsius scale used for?

  Measuring temperature
• What is the boiling point of water on the Fahrenheit scale?

  212°F
• Why doesn't the Kelvin scale use the degree symbol (°)?

  Because it is an absolute temperature scale
• What is the freezing point of water on the Fahrenheit scale?

  32°F
• In what year was the Celsius scale introduced?

  1742
• Why is the Celsius scale significant in temperature measurement?

  It is based on water's freezing and boiling points
• What is the freezing point of water in Celsius?

  0°C
• What are the freezing and boiling points of water on the Celsius scale?

  0°C and 100°C
• What is the freezing point of water in Kelvin?

  273.15 K
• What is the boiling point of water in Kelvin?

  373.15 K
• What are the key properties of the Fahrenheit scale?

  • Freezing point of water: 32°F
  • Boiling point of water: 212°F
  • Developed by Daniel Gabriel Fahrenheit
  • Used primarily in the United States
• What is the temperature range between the freezing and boiling points on the Fahrenheit scale?

  180 degrees
• Who introduced the Celsius scale?

  Anders Celsius
• What is the boiling point of water in Celsius?

  100°C
• Who developed the Fahrenheit scale?

  Daniel Gabriel Fahrenheit
• What is the relationship between Kelvin and Fahrenheit at absolute zero?

  0 K equals -459.67°F
• What are the implications of Kelvin being an absolute scale?

  • No negative values
  • Universal reference point
  • Consistent across all sciences
• How does the range of the Fahrenheit scale compare to the Celsius scale?

  Fahrenheit has a larger range of 180 degrees
• In which century was the Fahrenheit scale developed?

  Early 18th century
• How does the Fahrenheit scale differ from Celsius?

  It sets different freezing and boiling points
• In which fields is the Kelvin scale particularly important?

  Thermodynamics and chemical kinetics
• What is the freezing point of water in Rankine?

  491.67 °R
• How does the Kelvin scale differ from Celsius and Fahrenheit?

  It starts at absolute zero, not water points
• What are the key differences between the temperature scales?

  • Fahrenheit and Celsius are linear scales with different starting points
  • Rankine and Kelvin are absolute scales with the same increments as Fahrenheit and Celsius
  • Absolute zero is 0 K, -273.15 °C, or -459.67 °F
• What is absolute zero in Kelvin?

  0 K
• What are the key properties of the Kelvin scale compared to Celsius and Fahrenheit?

  • Freezing Point of Water: 273.15 K, 0°C, 32°F
  • Boiling Point of Water: 373.15 K, 100°C, 212°F
  • Absolute Zero: 0 K, -273.15°C, -459.67°F
• How would you convert a temperature of 50 °C to Fahrenheit?

  (50 °C × 9/5) + 32 = 122 °F
• How can you convert between the different temperature scales?

  • To convert Fahrenheit to Celsius: (°F - 32) × 5/9 = °C
  • To convert Celsius to Fahrenheit: (°C × 9/5) + 32 = °F
  • To convert Celsius to Kelvin: °C + 273.15 = K
  • To convert Fahrenheit to Rankine: °F + 459.67 = °R
• Compare the degree sizes of Celsius, Fahrenheit, and Kelvin.

  • Celsius and Kelvin: Equal degree sizes
  • Fahrenheit: Smaller degree sizes
• What is the Kelvin scale used for?

  Measuring absolute temperature
• How do the intervals between freezing and boiling points differ among the temperature scales?

  They have different intervals for water's states
• What is the absolute zero temperature in Celsius?

  -273.15 °C
• How do the different temperature scales relate to each other?

  • Fahrenheit and Celsius are linear scales with different starting points and increments
  • Rankine and Kelvin are absolute scales with the same increments as Fahrenheit and Celsius respectively
  • Absolute zero is 0 K, -273.15 °C, or -459.67 °F
• Why is the Kelvin scale essential in scientific calculations?

  It provides a universal reference for absolute temperatures
• What is the relationship between the degree sizes of Celsius and Kelvin compared to Fahrenheit?

  Celsius and Kelvin have equal degree sizes
• What is the relationship between Kelvin and Celsius at absolute zero?

  0 K equals -273.15°C
• What are the freezing and boiling points for Celsius, Fahrenheit, and Kelvin?

  • Celsius: Freezing at 0°C, Boiling at 100°C
  • Fahrenheit: Freezing at 32°F, Boiling at 212°F
  • Kelvin: Freezing at 273.15 K, Boiling at 373.15 K
• What are the three main temperature scales?

  Celsius, Fahrenheit, and Kelvin
• What is the starting point of the Kelvin scale?

  Absolute zero (0 K)
• Why is absolute zero significant in the Kelvin scale?

  It is the lowest possible temperature