Homework Help

Q. Molar heat capacity of water in equilibrium with ice at constant pressure is:- a)...

user profile pic

user8235304 | Student, Grade 11 | (Level 1) Valedictorian

Posted August 4, 2013 at 11:53 AM via web

dislike 2 like

Q. Molar heat capacity of water in equilibrium with ice at constant pressure is:-

a) zero

b) infinity

c) 40.4 `kJ mol^-1 K^-1`

d) 75.4 `kJ mol^-1 K^-1`

1 Answer | Add Yours

user profile pic

llltkl | College Teacher | (Level 3) Valedictorian

Posted August 4, 2013 at 12:30 PM (Answer #1)

dislike 1 like

Water, in equilibrium with ice has a steady temperature of zero degree Celsius.

Water, in the liquid state, has a  specific heat of exactly 1 calorie per gram.

Molar mass of water is 15.999+2.016=18.015 grams per mole.

Therefore, molar heat capacity of water at zero degree Celsius is

=18.015*1 Calorie/mole/K

=18.015*1*4.184 Joules/mole/K.

=75.4 J/mole/K.

None of the given options is correct.

Sources:

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes