Unit 8 Flashcardizz Review

Front

The amount of energy required to raise the temperature 1ºC for every gram is called?

Back

Specific Heat

Front

What unit do you use to measure Thermal Energy?

Back

J (Joules)

Front

Calculate the heat energy (Q) that moves from 20 g of water with a specific heat of 4.18 J/x°C when the temperature changes from 25° C to 20° C.

Back

418 Joules

Front

Determine the heat energy needed to heat 2400g of water from 25˚C to boiling (100˚C) with a specific heat of 4.18 J/(g˚C).

Back

752,400J

Front

What is the change in temperature when a piece of aluminum foil cools from 100° to 50°?

Back

50°

Front

Define Thermal Energy.

Back

Thermal Energy is the total kinetic energy of particles in a substance.

Front

What is the formula for calculating heat energy (Q)?

Back

Q = m * c * ΔT, where m is mass, c is specific heat, and ΔT is the change in temperature.

Front

What does the symbol 'c' represent in the heat energy formula?

Back

'c' represents the specific heat capacity of a substance.

Front

If 100g of water is heated from 20°C to 80°C, how much heat energy is required? (Specific heat of water = 4.18 J/g°C)

Back

Q = 100g * 4.18 J/g°C * (80°C - 20°C) = 25,050 J.

Front

What is the specific heat of aluminum?

Back

The specific heat of aluminum is approximately 0.897 J/g°C.