Calculate delta H fro the following equation:
H20(l, 50.0 C) yields H20(s, -10.0 C)
Do you have specific heat water? ice? heat fusion?
To calculate the change in enthalpy (ΔH) for the given equation, you need to consider the enthalpy changes involved in the phase transition from liquid to solid.
The enthalpy change during a phase transition is given by the equation:
ΔH = m * ΔHf
Where:
ΔH is the change in enthalpy
m is the mass of the substance
ΔHf is the enthalpy of fusion (or heat of fusion) for the substance
In this case, the phase transition is from water (H2O) in the liquid state at 50.0 °C to water in the solid state at -10.0 °C. To calculate ΔH, you need to determine the mass of water and the enthalpy of fusion of water.
1. Calculate the mass of water:
To calculate the mass of water, you need to know the density of water. The density of water is approximately 1.00 g/mL.
Assuming you have 1 mL of water, which is equivalent to 1 gram (since the density is 1.00 g/mL), you can use this mass in your calculation. If you have a different mass of water, adjust accordingly.
2. Calculate the enthalpy of fusion (ΔHf) of water:
The enthalpy of fusion is the amount of heat required to convert one gram of a substance from the solid phase to the liquid phase (or vice versa) at a constant temperature. For water, the enthalpy of fusion is 334 J/g.
Now, you can use the equation ΔH = m * ΔHf to calculate the change in enthalpy:
ΔH = (mass of water) * ΔHf
Substituting the values we have:
ΔH = 1 gram * 334 J/g
Therefore, the change in enthalpy (ΔH) for the given equation is 334 J.