Answered

Examine the graph below.



Choose which of the following is NOT true.

Absolute zero on Kelvin scale is -273°C.
Liquefaction of the gas occurs at approximately -155°C.
Condensation occurs at 0°C.
The gas follows a linear relationship between volume and temperature.

Examine the graph below Choose which of the following is NOT true Absolute zero on Kelvin scale is 273C Liquefaction of the gas occurs at approximately 155C Con class=


Answer :

Obviously from the graph, the relationship is linear. Charle's laws also say that so that one can be eliminated. Also using the points on the graph, abolute 0 is -273 and liquefication occurs around -155. That sets the answer to Condensation occurs at 0

Answer : The incorrect option is, Condensation occurs at [tex]0^oC[/tex].

Explanation :

Absolute zero on Kelvin scale is [tex]-273^oC[/tex].

This statement is correct because at [tex]0K[/tex] the temperature in degree Celsius will be, [tex]0K=0-273=-273^oC[/tex]

Liquefaction of the gas occurs at approximately [tex]-155^oC[/tex].

This statement is correct. From the given graph the liquification of gas occurs at [tex]-155^oC[/tex].

The gas follows a linear relationship between volume and temperature.

This statement is correct. According to the Charles law, the volume of gas is directly proportional to the temperature of the gas. So, gas follow the linear relationship between the volume and temperature.

Condensation occurs at [tex]0^oC[/tex].

This statement is incorrect because condensation occurs at [tex]100^oC[/tex]. and the condensation is a process in which the phase changes from the gaseous state to liquid state at constant temperature.

As we know that condensation is a reverse process of vaporization. Both the process occurs at constant temperature [tex]100^oC[/tex].

Hence, the incorrect option is, Condensation occurs at [tex]0^oC[/tex].

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