Thermodynamics Quiz

According to the second law of thermodynamics, label the beaker with the highest and the lowest entropy.

• The beaker on the left has the highest entropy.

• The beaker on the right has the highest entropy.

• Both beakers have the same entropy.

• Entropy cannot be determined from the image.

Describe the Law on Conservation of Energy in a car.

• Chemical potential energy is stored in the bonds of the gas when the car is off.

• Thermal kinetic energy is transformed when the car is turned on.

• Both A and B are correct.

• Neither A nor B is correct.

In the graph below, what is the relationship between temperature and entropy?

• As temperature increases, entropy decreases.

• As temperature increases, entropy increases.

• Temperature and entropy are unrelated.

• Entropy remains constant regardless of temperature.

How do you determine the atomic number of an element?

• Neutrons

• Electrons

• Protons

• Mass Number

In a neutral atom, what has to be equal?

• Protons & Neutrons

• Electrons & Neutrons

• Protons & Electrons

• Mass Number & Atomic Number

How do you determine the mass number of an atom?

• Protons + Electrons

• Neutrons + Electrons

• Protons + Neutrons

• Atomic Number + Electrons

What is the mass number of Fluorine-19?

• 9

• 10

• 19

• 18

What is the atomic number of Fluorine-19?

• 19

• 9

• 10

• 18

Who proposed that atoms are tiny indivisible spheres?

• Thomson

• Rutherford

• Dalton

• Bohr

Which scientist discovered electrons using the cathode ray tube?

• Rutherford

• Bohr

• Heisenberg

• Thomson