Thermodynamics Final Exam Review

What is the quantity of heat needed to change the temperature of 1 g of a substance by 1^oC?

• joule
• enthalpy
• calorimeter
• specific heat

If a piece of aluminum is heated from 30.0^oC to 50.0^oC, what is the value of ΔT?

• 293.0K
• 20.0K
• 0.0K
• 80.0K

What would likely happen if you were to touch the flask in which an endothermic reaction were occurring?

• The flask would probably feel warmer than before the reaction started.
• The flask would feel the same as before the reaction started.
• The flask would probably feel cooler than before the reaction started.
• None of these.

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

A piece of metal is heated, then submerged in cool water.  Which statement below describes what happens?

• The temperature of the metal will increase.
• The temperature of the water will increase and the temperature of the metal will decrease.
• Both the temperature of the metal and the temperature of the water will increase.  
• The temperature of the water will decrease.

Tags

NGSS.HS-PS3-4

How much heat is needed to raise the temperature of 58.6 g of argon from 23.4^oC to 55.6^oC? The specific heat capacity of argon 0.520 J/g⋅K.

• 981 J
• 1671 J
• 1887 J
• 3.50 J

Tags

NGSS.HS-PS3-4

A process that releases heat is a(n)

• isothermic process
• exothermic process
• endothermic process
• polythermic process

Tags

NGSS.HS-PS1-4

What is the energy required to raise the temperature of 1 g of a substance by 1^oC or 1 K?

• specific heat capacity
• heat energy
• enthalpy of formation
• enthalpy of combustion

Tags

NGSS.HS-PS3-4

When 41.5 g of an alloy, at 24.6^oC, are dropped into 100.0 g of water, the alloy absorbs 954 J of heat.  If the final temperature of the alloy is 39.2^oC, what is its specific heat?

• 1010 J/g⋅K
• 0.595 J/g⋅K
• 336 J/g⋅K
• 1.57 J/g⋅K

Tags

NGSS.HS-PS3-4

On what principle does calorimetry depend?

• law of conservation of energy
• law of enthalpy
• Hess's Law
• law of multiple proportions

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-4

In a calorimeter, the energy content of a substance is calculated from measurement of the temperature change in a known mass of

• steel
• air
• iron
• water