Dioxane C4H8O2 has an enthalpy of fusion = 145.8 Jg-1 and its melting point temp is 11 degrees C. How much energy is required to transform 142g of solid dioxane at 11 degrees C into liquid dioxane, also at 11 degrees C?
Heat=Heatfusion*mass
=145.8J/g * 142g
2.07x10-4
To calculate the energy required to transform solid dioxane into liquid dioxane, we need to use the equation:
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.
To calculate the energy required to transform solid dioxane at 11 degrees Celsius into liquid dioxane at 11 degrees Celsius, we need to use the following formula:
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.