Chemistry - Unit 9 - Thermodynamics

Front

If the reactant particles collide with less than the activation energy, the particles will be rebound, and no reaction will occur.

Back

True

Front

With the increase in temperature, the average kinetic energy of the molecules increases, leading to a decrease in number of collisions per unit time.

Back

False

Front

Temperature is a measure of the...

Back

average kinetic energy of molecules in a substance

Front

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

Back

True

Front

Heat transfer by conduction occurs when...

Back

particles bump into each other

Front

Heat travels from the sun to the earth by the process of...

Back

radiation

Front

A substance with a high specific heat:

Back

Requires a lot of energy to become hot.

Front

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

Back

increase

Front

The first law of thermodynamics states that energy is

Back

conserved

Front

Entropy

Back

The tendency of energy to spread out