The specific heat capacity of water is 4.18 J K⁻¹ g⁻¹. What is the enthalpy (heat) change when 10.00 g of water is heated from 285.0 to 300.0 K (Hint temperature change is the same in °C or Kelvin)?

Respuesta :

Answer:627j

Explanation:

H=mcΔT

ΔH= 10*4.18*(300-285)

ΔH=10*4.18*15

ΔH=627j

The heat of the given water sample has been 0.627 kJ.

The specific heat has been described as the amount of heat required to raise the temperature of 1 gram of substance by 1 degree Celsius. The expression for specific heat has been given as:

Heat = mass × specific heat × change in temperature

For the given water sample:

Specific heat = 4.18 J/K/g

Mass = 10 g

Initial temperature ([tex]T_i[/tex]) = 285 K

Final temperature ([tex]T_f[/tex]) = 300 K

Change in temperature ([tex]\rm \Delta T[/tex]) can be given as:

[tex]\Delta T =T_f\;-\;T_i\\\Delta T=300\;\text K\;-\;285\;\text K\\\Delta T=15\;\text K[/tex]

Substituting the values for heat:

[tex]\rm Heat=10\;g\;\times\;4.18\;J/K/g\;\times\;15\;K\\Heat\;=\;627.6\;J\\Specific\;heat\;=\;0.627\;kJ[/tex]

The heat of the given water sample has been 0.627 kJ.

For more information about the specific heat, refer to the link:

https://brainly.com/question/1209542