Question

Matter is in a liquid state when its temperature is between its melting point and its boiling point. Suppose that some substance has a melting point of -36.14 degrees Celsius and a boiling point of 324.84 degrees Celsius . What is the range of temperatures in degrees Fahrenheit for which this substance is not in a liquid​ state?

Answer 1

i. When the temperature is above
`616.712^(o)`F, it changes to gas.

ii. When the temperature is below
`-33.052^(o)`F, it changes to solid.

Explanation:

Matter generally exists in either a solid, liquid or gaseous form. With each phase having a certain range of temperature.

Temperature scale of a given substance can be either in Celsius, Fahrenheit or Kelvin. And conversion from one scale to another can be achieved. Example, Celsius scale can be converted to Fahrenheit by:

F =
`(9)/(5)` θ + 32

where: F is the equivalent temperature in Fahrenheit, θ is the value of temperature in degree Celsius.

Given that: melting point of the substance =
`-36.14^(o)`C

⇒ F =
`(9)/(5)` x
`-36.14^(o)` + 32

=
`-33.052^(o)`F

The boiling point =
`324.84^(o)`C

F =
`(9)/(5)` x
`324.84^(o)` + 32

=
`616.712^(o)`F

The melting point of the substance is
`-33.052^(o)`F, and boiling point is
`616.712^(o)`F.

Therefore, the range of temperatures for which the substance is not in a liquid state are:

i. When the temperature is above
`616.712^(o)`F, it changes to gas.

ii. When the temperature is below
`-33.052^(o)`F, it changes to solid.