phy

If the specific heat if water is 4.18 J/g℃, how much heat is required to increase the temperature of 1.2 kg of water from 23℃ to 39℃?

80,000 J

The Gulf Stream is a current that brings warm ocean water from the south to the north. What type of heat transfer is this?

Convection

Once I take an ice pack out of the freezer, is it endothermic or exothermic?

Endothermic

There are four cups of hot cocoa. The cup sizes are shown. The temperature of the cocoa in each cup is 25 degrees Celsius. Which cup has the MOST thermal energy?

large cup

Heat from the sun travels to Earth by

radiation

The measurement of average kinetic energy of all the particles within an object is called

temp

What kind of energy is presented in this picture (fogata)?

thermal

Heat is the movement of ________

thermal energy

What letter represents the energy of the products?

ultima letra

Water has a specific heat of 4.18 J/g℃. wood has a specific heat of 1.760 J/g℃. what material needs more energy to raise the temperature 1℃?

water

A piece of metal with a mass of 32.8 g is heated to 100.5℃ and dropped into 138.2 g of water at 20.0℃. The final temperature of the system is 30.2℃. What is the specific heat capacity of the metal?

2.55 J/g℃

A sample of iron receives 50.0 J of heat energy that raises the temperature of the iron by 25.0℃. If iron has a specific heat of 0.1000 J/g℃, what is the mass of the iron sample?

20g

Convert 300 K to ℃

27℃

How many joules of energy are required to change 10. Grams of water from 20.℃ to 90.℃?

2900 J creo

Thermal energy ALWAYS moves from _______ to _______

hot to cold

What does q mean?

A change in heat

What type of reaction is this? (ultima rayita es mas baja)

Exothermic

When holding a cup of ice water, your warm hand becomes cold. How does the heat transfer?

From your warm hand to the cold cup CASI SEGURA DE QUE ES ESTA.

In which state of matter do molecules have the highest average kinetic energy?

Gas

What unit do you use to measure thermal energy?

J

Energy of motion is which type of energy?

Kinetic

In a kitchen pot, used for cooking, do you want a high or low specific heat?

Low, so that it will change temperature quickly

What is the equation to measure change in thermal energy?

Q = mcT

In an exothermic reaction, heat is __________ by the system

RELEASED

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

Specific heat

If I left ice water and hot water in my room for 24 hours, the temperature would eventually reach

Thermal equilibrium

What happens to particles as they cool down?

They slow down CREO

When plants convert the sun's energy into food, which type of energy is it?

chemical

The heat from a hot burner to a pot is transferred by

conduction

_______ reactions usually feel cold

endothermic