Answer the following questions based on the phase diagram (not to scale!) for nitrogen, N2, and on the following data: AHfusion =25.5 J/g, AH vap = 199 J/g, specific heat gas = 1.04 J/g-K P atm 33.5 1.00 P 0.127 63.1 63.2 77.4 126.0 T Kelvin (a) What is the normal melting point? K The normal boiling point? (b) At what temperature and pressure do the three phases coexist in equilibrium? T = | K, P = atm (c) Is nitrogen a solid, a liquid or a gas at room temperature and pressure? (d) Which is the more dense phase, the liquid or the solid? (e) A 44.5 g sample of liquid nitrogen is heated at a constant pressure of 1 atm from a temperature of 77.4 K to a temperature of 161.2 K. How much energy in kJ is required? kj Previous

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Answer the following questions based on the phase diagram (not to scale!) for nitrogen, N2, and on the following data:
AHfusion =25.5 J/g, AH vap = 199 J/g, specific heat gas = 1.04 J/g-K
P
atm
33.5
1.00
P
0.127
63.1 63.2
77.4 126.0
T Kelvin
(a) What is the normal melting point?
K The normal boiling point?
(b) At what temperature and pressure do the three phases coexist in equilibrium? T = |
K, P =
atm
(c) Is nitrogen a solid, a liquid or a gas at room temperature and pressure?
(d) Which is the more dense phase, the liquid or the solid?
(e) A 44.5 g sample of liquid nitrogen is heated at a constant pressure of 1 atm from a temperature of 77.4 K to a temperature of 161.2 K. How much energy in kJ is
required?
kj
Previous
Transcribed Image Text:Answer the following questions based on the phase diagram (not to scale!) for nitrogen, N2, and on the following data: AHfusion =25.5 J/g, AH vap = 199 J/g, specific heat gas = 1.04 J/g-K P atm 33.5 1.00 P 0.127 63.1 63.2 77.4 126.0 T Kelvin (a) What is the normal melting point? K The normal boiling point? (b) At what temperature and pressure do the three phases coexist in equilibrium? T = | K, P = atm (c) Is nitrogen a solid, a liquid or a gas at room temperature and pressure? (d) Which is the more dense phase, the liquid or the solid? (e) A 44.5 g sample of liquid nitrogen is heated at a constant pressure of 1 atm from a temperature of 77.4 K to a temperature of 161.2 K. How much energy in kJ is required? kj Previous
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