Thermochemistry ET

What does the specific heat capacity of a substance tell you?

• The temperature at which it melts

• The energy required to raise the temperature of 1 gram of a substance by 1°C

• The total energy in a substance

• The rate at which energy is lost to the environment

Which of the following is an example of an endothermic process?

• Freezing water

• Condensation of steam

• Melting ice

• Burning wood

Which law of thermodynamics states that energy cannot be created or destroyed?

• First Law

• Second Law

• Third Law

• Zeroth Law

If 100 g of water is heated from 30°C to 90°C, which variable does the 90°C represent in the specific heat equation?

• qq

• mm

• cc

According to the Second Law of Thermodynamics, what naturally increases over time in any closed system?

• Temperature

• Pressure

• Entropy

• Heat