This is a timed quiz.
You have 10 minutes to complete the 8 questions in this quiz.
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?
solid to gas
solid to liquid
liquid to solid
gas to solid
liquid to gas
gas to liquid
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 = Joules
During a phase change, may be added or removed from a system but the will not change.
Which of the following could be defined as the latent heat of fusion:
The energy required to transition one unit of a substance from solid to liquid
The energy liberated when one unit of a substance transitions from liquid to solid
The energy required to transition one unit of a substance from liquid to vapor
The energy liberated when one unit of a substance transitions from vapor to liquid
The process of changing phase on a phase change, (T vs E) diagram is represented by:
A horizontal line
A vertical line
A positive sloping line
negative sloping line
Water is rare in that when it cools down, the structure of the molecules:
Spread out
Move faster
Slow down
Expand
Which of the following would be considered 'phases'?
Solid
Liquid
Gas
Sublimation
Melting
Freezing
Condensation