Please help me with these questions. I really appreciate it. I dont have alot of

Question

Please help me with these questions. I really appreciate it. I dont have alot of questions remaing. Please understand! Thank you so much!

6. A 24.3 g sample of water is heated from a liquid at 40 °C to a gas at 110°C. Using the heating curve diagram provided below, answer the following questions: The molar heat of fusion is 6.02 kJ/mol. The specific heat of liquid water is 75.4 J/mol. °C. The specific heat of gaseous water is 33.1 J/mol C. The molar heat of vaporization is 40.7 kl/mol. 110 1000 80 E 70 E 60 50 40 Time (min)

Explanation / Answer

I)
in QR temperature of liquid water is being increased
Answer: A) Liquid phase only

II)
Since temperature increases, average Kinetic Energy increases
Answer: A

III)
Here liquid changes to gas
Answer: A) Evaporation

IV)
Answer: D

V)
number of mol, n = mass/molar mass
= 24.3/18
= 1.35 mol
Q = n*Hvap
= 1.35 mol * 40.7 KJ/mol
= 54.8 KJ

Answer: D

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