IB Chemistry Thermodynamics

A slower particle has a lower energy than an identical, faster particle.

• True
• False

The transfer of thermal energy between objects of different temperatures is called...

• temperature
• heat
• internal energy
• none of these

It is possible to reach absolute zero

• true
• false

When thermal energy is added to a substance, the substance's particles move:

• More rapidly at an increased diestance from each other.
• More rapidly with less distance between each other.
• More slowly with a greater distance between each other.
• More slowly with a reduced distance between each other.

A substance with a high specific heat:

• Is always extremely hot.
• Requires a lot of energy to become hot.
• Is not heavy.
• Does not requires a lot of energy to become hot.

Thermal energy always moves:

• From a high temperature object to a lower temperature object.
• From a lower temperature object to a higher temperature object.
• From an object with lower kinetic energy to an object with higher kinetic energy.
• From an object of higher mass to an object of lower mass.

The second  law of thermodynamics states that entropy of a system  tends to ______________. 

• increase
• decrease
• stay constant
• fluctuate wildly

The endothermic process among the following is

• Natural gas is combusted in a Bunsen burner.

• Water vapor condenses on the outside of a glass of iced tea.

• A cop of hot water cools as a tea bag brews.

• An ice cube melts on a countertop.

The 3rd Law of Thermodynamics indicates that

• enthalpy of the universe is a constant

• entropy of the universe increases

• sum of the entropies of the system plus surroundings is zero

• entropy of a perfectly ordered pure crystal is zero at absolute zero

Entropy of the universe is

• always zero.

• always constant.

• always increasing.

• always decreasing.