Topic 8 Thermochemistry Practice

What is the tendency of systems in nature according to the big ideas in thermochemistry?

• Toward higher energy and lower entropy

• Toward lower energy and higher entropy

• Toward higher energy and higher entropy

• Toward lower energy and lower entropy

Tags

NGSS.HS-PS3-4

According to the Law of Conservation of Energy, energy cannot be created or destroyed but can be:

• Transferred in chemical processes

• Multiplied in chemical processes

• Divided in chemical processes

• Eliminated in chemical processes

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-4

What is the specific heat capacity of water given on Table B?

• 4.18 J/g°C

• 3.18 J/g°C

• 5.18 J/g°C

• 2.18 J/g°C

What is the heat value when heat is absorbed in a reaction (Table I)?

• Positive

• Negative

• Zero

• Undefined

Tags

NGSS.HS-PS1-4

In a heating curve, what happens to the temperature during the horizontal parts (plateaus)?

• Temperature remains the same

• Temperature increases

• Temperature decreases

• Temperature fluctuates

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The normal boiling point of water at 1 atm according to Table H (a)  

• 101.3 kPa
• 100 kPa
• 99.1 kPa
• 102.5 kPa

Tags

NGSS.MS-PS1-4

The normal boiling point of propanone at 1 atm according to Table H (a)  

• 101.3 kPa
• 100 kPa
• 99.1 kPa
• 102.5 kPa

The three P's to remember in thermochemistry are (a)   , Phase Change, Potential Energy Change.

• Plateau, Phase Change, Potential En
• Pressure, Phase, Potential
• Plateau, Pressure, Potential
• Phase, Pressure, Plateau

In a cooling curve, what happens to the temperature during the diagonal parts?

• Temperature decreases

• Temperature increases

• Temperature remains the same

• Temperature fluctuates

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The normal boiling point of water is (a)  

• 57°C
• 78°C
• 100°C
• 111°C

Tags

NGSS.MS-PS1-4