*Please show all work, calculations , and explain Diethyl ether, used as a solve

Question

*Please show all work, calculations , and explain

Diethyl ether, used as a solvent for extraction of organic compounds from aqueous solutions, has a high vapor pressure which makes it a potential fire hazard in laboratories in which it is used. How much energy is released when 100.0 g is cooled from 53.0°C to 10.0°C?

Boiling point:

34.5°C

Heat of vaporization:

351 J/g

Specific heat capacity, (CH3)2O(l):

    3.74 J/(g×K)

Specific heat capacity, (CH3)2O(g):

    2.35 J/(g×K)

Boiling point:

34.5°C

Heat of vaporization:

351 J/g

Specific heat capacity, (CH3)2O(l):

    3.74 J/(g×K)

Specific heat capacity, (CH3)2O(g):

    2.35 J/(g×K)

Explanation / Answer

Total heat released
= heat evolved when cooled from 53.0°C to 34.5°C (gaseous) + heat of vapourization + heat evolved when cooled from 34.5°C to 10.0°C (liquid)
= (100x2.35x(53-34.5)) + (100x351) + (100x3.74x(34.5-10)
= 48610.5 J
= 48.6 kJ

Related Questions

Navigate

• Browse (All)
• Browse #
• Subjects

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