Final answer:
The heat evolved in converting 1.00 mol of steam at 145 °C to ice at -70.0 °C involves several calculations for each phase change and temperature change. The exact specific and latent heats are needed to find the heat released during the conversion.
Step-by-step explanation:
To calculate the heat evolved in converting 1.00 mol of steam at 145 °C to ice at -70.0 °C, the process can be broken down into several steps:
Cooling steam from 145 °C to 100 °C
Condensing steam at 100 °C to water
Cooling water from 100 °C to 0 °C
Freezing water at 0 °C to ice
Cooling ice from 0 °C to -70.0 °C
Each step requires specific energy calculations using the respective specific heats and latent heats for condensation and fusion. However, the exact values for specific heats and latent heats are necessary to perform the calculations. Once the individual amounts of heat for each step are calculated, they are summed up to find the total heat transfer.