Kinetics and Thermodynamics

Question 1

What is energy?

Answer 1

Energy must be transferred to an object in order to perform work on or to heat an object.

Question 2

What does the conservation of law state?

Answer 2

That the energy can be converted in form, but not created or destroyed.

Question 3

What are the units of energy?

Answer 3

Joules (J)

Question 4

Who held experiments about energy?

Answer 4

James Prescott Joule’s

Question 5

What does endothermic and exothermic mean?

Answer 5

Endothermic means that its hotter than the surroundings and exothermic means that it is cooler than the surroundings.

Question 6

What are examples of each forms of energy?
-Kinetic energy
-Electrical
-Nuclear
-Sound
-Light
-Heat
-Chemical

Answer 6

Kinetic energy= energy of a moving body potential storing kinetic energy.
Electrical= energy from the flow of electrons.
Nuclear= energy from radioactivity.
Sound= energy from pressure waves.
Light= energy from light waves.
Heat= energy from heat.
Chemical= energy stored in bonds.

Question 7

What is bond breaking?

Answer 7

Bond breaking needs energy so its endothermic.

Question 8

What is bond forming?

Answer 8

Bond forming gives out energy so its exothermic.

Question 9

What is Hess’s Law?

Answer 9

Hess’s law states that if a reaction can take place by more than one route and they would reach the final position.