contestada

6832 J of heat energy is applied to 5.9 mol of water. If the original temperature of the water was 18.60C, the final temperature of the water will be _____________________0C. Record your answer to 1 decimal place.

Respuesta :

Answer: The final temperature of the water will be [tex]34.0^0C[/tex]

Explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

[tex]Q=m\times c\times \Delta T[/tex]

Q = Heat absorbed=[tex]6832[/tex] Joules

m= mass of water = [tex]5.9mol\times 18g/mol=106.2g[/tex]

c = specific heat capacity = [tex]4.184J/g^0C[/tex]

Initial temperature of the water = [tex]T_i[/tex] = [tex]18.6^0C[/tex]

Final temperature of the water = [tex]T_f[/tex]  = ?

Putting in the values, we get:

[tex]6832=106.2\times 4.184\times (T_f-18.6)[/tex]

[tex]T_f=34.0^0C[/tex]

The final temperature of the water will be [tex]34.0^0C[/tex]