Thermodynamics Flashcards
7 cards from real Ramsay Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Thermodynamics flashcards as text
What is the first law of thermodynamics fundamentally a statement of?
Answer: Conservation of energy
The first law states that energy cannot be created or destroyed, only converted between forms.
Heat transfer through direct physical contact between materials is called what?
Answer: Conduction
Conduction transfers heat through molecular contact within or between solids.
On the Celsius scale, at what temperature does water boil at standard atmospheric pressure?
Answer: 100 degrees
Water boils at 100 degrees Celsius at sea-level atmospheric pressure.
What happens to the boiling point of a liquid as pressure increases?
Answer: It rises
Higher pressure raises the boiling point, which is why pressure cookers cook faster.
Which heat transfer mode requires no medium and can occur through a vacuum?
Answer: Radiation
Radiation transfers energy as electromagnetic waves, needing no physical medium.
What is the term for the energy required to change a substance from solid to liquid without a temperature change?
Answer: Latent heat of fusion
Latent heat of fusion is the energy absorbed during melting at constant temperature.
A material with high thermal conductivity will do what compared to a low-conductivity material?
Answer: Transfer heat faster
High thermal conductivity means heat passes through the material more readily.