Order these substances from lowest boiling point to highest: NH3, C2H6, Ne, HBr, and H2O.

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The boiling point is the temperature at which a substance changes from the liquid phase to the gaseous phase. The most common day to day example of boiling is the boiling of water (especially while making tea, etc.). When the water is heated to its boiling temperature (100 degrees Celcius),...

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The boiling point is the temperature at which a substance changes from the liquid phase to the gaseous phase. The most common day to day example of boiling is the boiling of water (especially while making tea, etc.). When the water is heated to its boiling temperature (100 degrees Celcius), it converts to steam, which is its gas phase.

For the given question, the boiling points of the various chemicals are listed below:

NH3 or Ammonia: -33.34 degrees Celcius or -28 degrees Fahrenheit

C2H6 or Ethane: -89 degrees Celcius or -127.3 degrees Fahrenheit

Ne or Neon: -246 degrees Celcius or -411 degrees Fahrenheit

HBr or hydrogen bromide: -66 degrees Celcius or -86.8 degrees Fahrenheit

H2O or water: 100 degrees Celcius or 212 degrees Fahrenheit

From the lowest to the highest boiling point, the chemicals can be arranged as:

Ne or Neon < C2H6 or Ethane < HBr or hydrogen bromide < NH3 or ammonia < H2O or water

The series is thus because of the boiling temperatures of these chemicals, which can be listed from the lowest value to the highest as:

-246 degrees C < -89 degrees C < -66 degrees C < -33.34 degrees C < 100 degrees C

Kindly note that only water, from the given chemicals, has a boiling point which is more than zero; the rest of the chemicals have a below-zero boiling point. This means that the water is liquid at room temperature.

Hope this helps.

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