Below Table gives experimental values of the molar

QUESTION:

PROBLEM 33P

Below Table gives experimental values of the molar enthalpy of nitrogen at 1 bar and 100 bars. Use this data to answer the following questions about a nitrogen throttling process operating between these two pressures.

(a) If the initial temperature is 300 K, what is the final temperature? (Hint: You’ll have to do an interpolation between the tabulated values.)

(b) If the initial temperature is 200 K, what is the final temperature?

(c) If the initial temperature is 100 K, what is the final temperature? What fraction of the nitrogen ends up as a liquid in this case?

(d) What is the highest initial temperature at which some liquefaction takes place?

(e) What would happen if the initial temperature were 600 K? Explain.

Table: Molar enthalpy of nitrogen (in joules) at 1 bar and 100 bars. Excerpted from Lide (1994) .