Heat=Heatfusion*mass
=145.8J/g * 142g
=145.8J/g * 142g
Energy = mass x enthalpy of fusion
Given that the enthalpy of fusion of dioxane is 145.8 Jg-1 and we have 142g of solid dioxane, we can calculate the energy required as follows:
Energy = 142g x 145.8 Jg-1
Energy = 20,697.6 J
Therefore, it would require approximately 20,697.6 Joules of energy to transform 142g of solid dioxane at 11 degrees C into liquid dioxane, also at 11 degrees C.
Energy = mass × enthalpy of fusion
Given parameters:
Mass (m) = 142 g
Enthalpy of fusion (ΔH) = 145.8 J/g
Let's plug these values into the formula:
Energy = 142 g × 145.8 J/g
Now, let's multiply the mass by the enthalpy of fusion:
Energy = 20,697.6 J
Therefore, the energy required to transform 142 g of solid dioxane at 11 degrees Celsius into liquid dioxane at 11 degrees Celsius is 20,697.6 J.