A tank of gas at 21 degrees C has a pressure of 1.0 atm. Using the data in the table answer the following questions. Explain your answers

A. If the tank contains carbon tetrafluoride, CF4 is the liquid state also present?

B. If the tank contains butane, C4H10 is the liquid state also present?

CF4 -128 degrees C (Boiling Point) -46 degrees C (critical Temperature) 41 atm (Critical Pressure)
C4H10 -0.5 degree C (Boling Point) 152 degrees C (Critical Temp) 38 atm (Critical Pressure)

http://www.chem.purdue.edu/gchelp/liquids/critical.html

To answer the questions, we need to compare the boiling points and critical temperatures of the gases in the tank with the current temperature of the tank.

A. To determine if CF4 is in the liquid state, we need to check if the current temperature (21 degrees C) is below the boiling point of CF4 (-128 degrees C). Since 21 degrees C is above the boiling point, CF4 is not in the liquid state.

B. To determine if C4H10 is in the liquid state, we need to check if the current temperature (21 degrees C) is below the boiling point of C4H10 (-0.5 degrees C). Since 21 degrees C is above the boiling point, C4H10 is also not in the liquid state.

In summary, neither CF4 nor C4H10 is in the liquid state based on the given temperature and boiling points.