Calorimetry

A glass of water is placed in a freezer. Which way does energy flow?

• Into the freezer

• Into the glass of water

• Energy does not flow

Tags

NGSS.HS-PS3-4

A bowl of hot soup sits on a table. Which is the system?

• The air

• The soup

• both

Tags

NGSS.HS-PS3-4

Which is a unit of heat?

• degrees Celsius

• degrees Fahrenheit

• Joules

A reaction takes place in a calorimeter. The water temperature decreased. Which way did energy flow?

• Into the system

• Into the surroundings

• Out of the system

Tags

NGSS.HS-PS3-4

How many calories are absorbed when 100 g of water increases in temperature from 20 ^o C to 40 ^o C?

• 12540 cal

• -3000 cal

• 3000 cal

Tags

NGSS.HS-PS3-1

Which constant would you use for this problem, 4.18 J/g^oC or 1 cal/g ^oC? How many grams of water absorbed 4180 J when the temperature increased from 10 ^o C to 50 ^o C ?

• 4.18 J/g^oC

• 1 cal/g ^oC

Tags

NGSS.HS-PS3-1

Rate your confidence on this subject.

• I got this!

• I am okay but need more practice.

• I am confused

Tags

NGSS.HS-PS1-2