Week 7 - Phase Change Capability

[blank_start]Specific[blank_end] [blank_start]heat[blank_end] is similar to heat capacitance, but is a specific number. The specific heat tells you how much energy one must put in per unit mass in order to raise the temperature 1 C. Answer is two words.

Which of the following processes indicate energy being released to the environment?

John wishes to heat a cup of water to make some ramen for lunch. His insulated cup holds 200 g of water at 20 C. He has an immersion heater rated at 1000 W (1000 J/s) to heat the water. How many joules of heat are required to heat the water to 100 C? Answer to 2 SF. E = [blank_start]67,000[blank_end] Joules

During a phase change, [blank_start]energy[blank_end] may be added or removed from a system but the [blank_start]temperature[blank_end] will not change.

Which of the following could be defined as the latent heat of fusion:

The process of changing phase on a phase change, (T vs E) diagram is represented by:

Water is rare in that when it cools down, the structure of the molecules:

Which of the following would be considered 'phases'?