Question

Complete the sentences describing the steps needed to calculate the energy change associated with the conversion of 333 g of water ice at −10 ∘C to steam at 125 ∘C.

A) Calculate the heat required to raise the temperature of ice from -10°C to 0°C.
B) Determine the heat needed to melt the ice at 0°C.
C) Calculate the heat required to raise the temperature of water from 0°C to 100°C.
D) Determine the heat needed to vaporize the water at 100°C.
E) Add the heats calculated in steps A to D to get the total energy change.

Answer 1

The energy change for converting 333 g of water ice at -10°C to steam at 125°C involves multiple steps: warming the ice to 0°C, melting the ice, heating the water to 100°C, and vaporizing the water, after which the total heat from each step is added to find the total energy change.

Step-by-step explanation:

To calculate the energy change associated with the conversion of 333 g of water ice at −10 °C to steam at 125 °C, follow these steps:

1. Calculate the heat required to raise the temperature of ice from -10°C to 0°C using the specific heat capacity of ice.
2. Determine the heat needed to melt the ice at 0°C by applying the latent heat of fusion.
3. Calculate the heat required to raise the temperature of water from 0°C to 100°C using the specific heat capacity of water.
4. Determine the heat needed to vaporize the water at 100°C using the latent heat of vaporization.
5. Add the heats calculated in steps A to D to get the total energy change.