Answer the following questions baseod on the phase diagram (not to scalel) for h

Question

Answer the following questions baseod on the phase diagram (not to scalel) for hydrogen, H2,and on the following data: AHtasion-58.4 Jg,AHyap- 452 J/g, specific heat gas 143 J/g1K 12.8 1.00 atm 0.071 13.9 14.0 20.3 33.2 T Kolvin () 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 hydrogen a solid, a liquid or a gas at room temperature and pressure?D (d) Which is the more dense phase, the liquid or the solid?B (e) A 39.1 g sample of liquid hydrogen is heated at a constant pressure of I atm from a temperature of 20.3 K to a te Previous

Explanation / Answer

a) normal melting and boiling point are considered at 1 atmospheric pressure

so the melting point is 14 K and boiling point is 20.3 K

b) all phase coexist at the triple point

T = 13.9 K and P = 0.071 atm

c) hydrogen is gas at room temperature

d) since the slope of the solid-liquid interface line is positive

so the solid is more dense phase than liquid.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.