Calculate the change in entropy that occurs in the system when 1.24 mol of isopropyl alcohol (c3h8o) melts at its melting point (-89.5 ∘c). heat of fusion is 5.37 kj/mol.

The change in entropy that occurs in the system is 36.3 J/Kmol

Explanation:

Given : 1 mole of isopropyl alcohol gives heat = 5.37 kJ

Thus 1.24 moles of isopropyl alcohol gives heat =

To calculate the temperature , we use the equation:

where,  

= Entropy of fusion = ?

= enthalpy of fusion  = 6.66 kJ/mol = 6660 J/mol     (1kJ=1000J)

T = melting point =

Thus the change in entropy that occurs in the system is 36.3 J/Kmol

- aluminum and copper chloride.

- the chloride ion to separate the aluminum from the oxygen so that the aluminum can react with the copper ions (and the water molecules).

the temperature of the gas, in k, not celsius.