Solids and Liquids

Front

What does a negative sign on the enthalpy of reaction indicate?

Back

The reaction is exothermic, meaning it releases heat.

Front

What does a positive sign on the enthalpy of reaction indicate?

Back

The reaction is endothermic, meaning it absorbs heat.

Front

What type of intermolecular force is a Dipole-Dipole Interaction?

Back

It occurs between polar molecules where positive and negative ends attract each other.

Front

What is the heat of vaporization?

Back

The energy absorbed or released when a substance vaporizes or condenses.

Front

What can be inferred if a solid sinks in a liquid of the same substance?

Back

The density of the solid is greater than that of the liquid.

Front

What is the specific heat of water?

Back

4.184 J/g°C.

Front

What is the specific heat of wood?

Back

1.760 J/g°C.

Front

Which material requires more heat to raise its temperature, water or wood?

Back

Water requires more heat.

Front

Define exothermic reaction.

Back

A reaction that releases heat to its surroundings.

Front

Define endothermic reaction.

Back

A reaction that absorbs heat from its surroundings.