Stoichiometry and Thermochemistry Challenge

• 5

• 6.5

• 13

• 10

• None, they are in stoichiometric proportion

Calculate the amount of heat absorbed when 50.0 g of water is heated from 25°C to 75°C. (Specific heat capacity of water = 4.18 J/g°C)

• 10,450 J

• 20,900 J

• 15,675 J

• 5,225 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

• 572 kJ

• 1144 kJ

• 286 kJ

• 2288 kJ

Tags

NGSS.HS-PS3-1

NGSS.HS-PS1-4

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

Tags

NGSS.HS-PS1-7

Calculate the heat change when 100 g of ice at 0°C melts to form water at 0°C. (Latent heat of fusion of ice = 334 J/g)

• 33,400 J

• 3,340 J

• 334,000 J

• 334 J

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

• -393.5 kJ

• -787.0 kJ

• -196.75 kJ

• 393.5 kJ

Tags

NGSS.HS-PS3-1

NGSS.HS-PS1-4

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-5

• None, they are in stoichiometric proportion