THERMODYNAMICS

Question 1

the measure of how “hot” or “cold” a body is

Answer 1

temperature

Question 2

its formla definition is the average kinetic energy of the molecules of a body

Answer 2

temperature

Question 3

the freezing point of water in Celsius is set at

Answer 3

0°C

Question 4

the boiling point of water in Celsius is set at

Answer 4

100°C

Question 4

the freezing point of water in fahrenheit is set at

Answer 4

32 °F

Question 5

the boiling point of water in Fahrenheit is set at

Answer 5

212 °F

Question 6

what temperature scale has a scale whose zero point is where all the molecular motion steps

Answer 6

Kelvin scale

Question 7

Three Temperature Scales

Answer 7

Celsius
Fahrenheit
Kelvin

Question 8

boiling point of water in Kelvin

Answer 8

375.15 K

Question 9

freezing point of water in Kelvin

Answer 9

273.15 K

Question 10

absolute 0 of Kelvin

Answer 10

0

Question 11

absolute zero in Celsius scale

Answer 11

-273.15 °C

Question 12

absolute zero in Fahrenheit

Answer 12

-460°F

Question 13

is the energy being transferred from one body to another due to the difference in their temperatures

Answer 13

heat

Question 14

is heat a vector quantity or a scalar quantity?

Answer 14

Scalar

Question 15

what is the symbol for heat

Answer 15

Q

Question 16

what is the SI unit for heat

Answer 16

Joules, J

Question 17

the direction of heat transfer or heat flow is ALWAYS from ________ to a ________

Answer 17

hot to cold

Question 18

3 effects of heat transfer

Answer 18

• temperature changes
• phase change
• thermal expansion

Question 19

is the process of measuring heat

Answer 19

Calorimetry

Question 20

it is amount of heat needed to raise the temperature of 1g of an object by 1°C

Answer 20

Specific heat capacity

Question 21

what is the symbol for calorimetry

Answer 21

c

Question 22

what is the SI unit for calorimetry

Answer 22

J/g * °C

Question 23

it depends on the material; each material has a unique specific heat capacity

Answer 23

specific heat capacity

Question 24

in calorimetry, it is the total amount of heat gained or lost an object when it changes temperature from T1 to T2

Answer 24

Q

Question 25

what is the formula for calorimetry

Answer 25

*Q* = mcΔT

Question 26

what does (m) mean in the formula: *Q* = mcΔT

Answer 26

mass of the object

Question 27

what does (c) mean in the formula: *Q* = mcΔT

Answer 27

specific heat capacity

Question 28

what does ΔT stand for

Answer 28

change in temperature

Question 29

this is a system that prevents its components from exchanging energy (such as heat) with the surroundings

Answer 29

Closed system

Question 30

what is the term when heat will flow until the system is said to be in _________ where A and B reaches a common temperature

Answer 30

thermal equilibrium

Question 31

the Law that states that if A is in thermal equilibrium with B, and B is in thermal equilibrium with C, then A is in thermal equilibrium with C

Answer 31

Zeroth Law of Thermodynamics

Question 32

What thermodynamic law can be observed when in a closed system, the sum of the heat gained by one body and the heat lost by another body is zero. This means that the total amount of energy inside a closed system does not change?

Answer 32

Law of Conservation of Energy

Question 33

it is described as solid, liquid, or gas

Answer 33

Phase

Question 34

it is the transition from one phase to another due to addition or removal of heat

Answer 34

Phase change

Question 35

what phase change occurs when solid turns to liquid

Answer 35

melting

Question 36

what is the opposite of melting?

Answer 36

freezing

Question 37

what phase change occurs when liquid become gas

Answer 37

vaporization

Question 38

what is opposit of vaporization

Answer 38

condensation

Question 39

what phase change occurs when solid becomes gas?

Answer 39

sublimation

Question 40

during phase change there is no change in ------------

Answer 40

temperature

Question 41

what formula cannot be used to determine the amount of heat involved during phase change

Answer 41

*Q* = mcΔT

Question 42

it is the amout of heat needed for 1 g of an object to undergo phase change

Answer 42

Latent Heat

Question 43

what is the symbol for Latent Heat

Answer 43

L

Question 44

what is the SI unit for Latent Heat

Answer 44

J/g

Question 45

What can be the other unit for Latent Heat

Answer 45

cal/g

Question 46

this depends on the material and type of phase transition; each material has a unique latent heat for each type of phase transition

Answer 46

Latent Heat

Question 47

is the Latent Heat negative or positive if the heat is released during phase change?

Answer 47

L is negative

Question 48

is the Latent Heat negative or positive if the heat is absorbed during phase change

Answer 48

L is positive

Question 49

it is the study of heat, energy transformation, work and temperature nad the relation of heat to other forms of energy and properties of matter

Answer 49

Thermodyamics