SI #11

The First Law of Thermodynamics is also known as the Law of:

• Entropy increase

• Conservation of Energy

• Heat flow

• Disorder

If you burn a piece of wood, the energy from the wood:

• Vanishes into thin air

• Is completely destroyed

• Changes from chemical energy to heat and light

• Creates new energy

According to the Second Law of Thermodynamics:

• Systems naturally become more ordered over time

• Energy can be fully converted from one form to another without any loss

• Heat will flow from a cold object to a hotter one

• Systems will tend to become more disordered over time

Which form of energy is associated with a compressed spring?

• Kinetic

• Thermal

• Chemical

• Potential

Energy stored in the food we eat is primarily in what form?

• Kinetic

• Potential

• Chemical

• Thermal

If you rub your hands together very fast, you primarily increase:

• Chemical energy in your hands

• Potential energy in your hands

• Kinetic energy in the air

• Thermal energy in your hands

A reaction that happens on its own after being initiated is called:

• Entropic

• Spontaneous

• Free

• Energized

If the entropy of a system increases:

• The system becomes more ordered

• The system becomes more disordered

• The system's temperature decreases

• The system's free energy increases

For a reaction to be spontaneous at constant temperature and pressure:

• It must release heat

• It must absorb heat

• Its free energy change must be positive

• Its free energy change must be negative

A reaction with a AG of -3 kcal/mol is:

• At equilibrium

• Energetically unfavorable

• Energetically favorable

• Impossible