MODULE 5: ENERGY AND LIFE

Question 1

deals with the relationships between heat and other forms of energy

Answer 1

THERMODYNAMICS

Question 2

Laws of Thermodynamics

Answer 2

First Law of Thermodynamics
Second Law of Thermodynamics
Third Law of Thermodynamics
Zeroth Law of Thermodynamics

Question 3

Who first used the word thermodynamic?

Answer 3

William Thomson (Lord Kelvin)

Question 4

therme (Gr.) means

Answer 4

heat

Question 5

dynamis (Gr.)

Answer 5

power

Question 6

quantity of fixed mass under investigation

Answer 6

Thermodynamic system

Question 7

everything external to the system

Answer 7

SURROUNDINGS

Question 8

interface separating system and surroundings

Answer 8

SYSTEM BOUNDARY

Question 9

combination of system and surroundings

Answer 9

UNIVERSE

Question 10

What cross into the system?

Answer 10

HEAT

Question 11

What cross out the system?

Answer 11

WORK

Question 12

Closed System

Answer 12

With heat
With work
No mass

Question 13

Open System

Answer 13

With heat
With Mass
With Work

Question 14

Isolated System

Answer 14

No Heat
No Mass
No Work

Question 15

Adiabatic System

Answer 15

No Mass
No Heat
With Work

Question 16

present status of the system described in terms of macroscopic properties, such as pressure, temperature, volume, no. of moles

Answer 16

STATE OF THE SYSTEM

Question 17

Characteristics by which the physical condition of the system is described

Answer 17

PROPERTIES OF THE SYSTEM

Question 18

Properties of the system that depend on mass or quantity of the system

Answer 18

Extensive Properties of the System

Question 19

Properties do not depend on the quantity of matter of the system

Answer 19

Intensive Properties of the System

Question 20

Extensive Properties

Answer 20

Mass, Volume, Enthalpy, Entropy, Internal Energy

Question 21

Intensive Properties

Answer 21

temperature
freezing point
boiling point
specific volume
density

Question 22

isothermal
isobaric
isochoric

Answer 22

constant temperature
constant pressure
constant volume

Question 23

state or condition with no spontaneous changes with respect to time

Answer 23

equilibrium

Question 24

property of an object related to the average kinetic energy of atoms and molecules in that object

Answer 24

TEMPERATURE

Question 25

heat exchange happens in

Answer 25

thermal contact

Question 26

no net exchange of energy

Answer 26

thermal equilibrium

Question 27

device calibrated to measure the temperature of an object

Answer 27

thermometer

Question 28

Scale used mostly in scientific and technical work

Answer 28

KELVIN

Question 29

What are the major difference between the temperature scales

Answer 29

size of their basic unit (degree) temperature that refers to zero

Question 30

lower limit of temperature which all the energy possible has been removed from the molecules

Answer 30

ABSOLUTE ZERO

Question 31

Conversion of Celsius to Fahrenheit

Answer 31

* F = 9/5 (C) + 32

Question 32

Conversion of Fahrenheit

Answer 32

* C = 5/9 (F - 32)

Question 33

Conversion to Kelvin

Answer 33

K = C + 273.15

Question 34

If objects A and B are separately in thermal equilibrium with a thrid object C, then A and B are in thermal equilibrium with each other.

Answer 34

ZEROTH LAW THERMODYNAMICS

Question 35

transferred between a system and its environment because of temperature difference that exists between them

Answer 35

HEAT

Question 36

Temperature difference is also called

Answer 36

TEMPERATURE GRADIENT

Question 37

BASIC UNIT OF HEAT

Answer 37

JOULE

Question 38

Amount of heat that it takes to increase the temperature of 1g of water 1C degree at 15 degree Celsius.

Answer 38

Calorie

Question 39

1 cal = Joules

Answer 39

4.186 Joules

Question 40

1Kcal = Joules

Answer 40

4186 Joules

Question 41

Amount of heat transferred (Q)

Answer 41

Q = mcΔT | m = mass c = specific capacity ΔT = Final T. - Initial T.

Question 42

# Methods of Heat Transfer: Two objects that are touching each other. Collisions between small particles allow fast moving, or vibrating, particles to give some of their microscopic kinetic energy to slower particles.

Answer 42

CONDUCTION

Question 43

# Methods of Heat Transfer caused by moving fluids, where particles can mix together, move faster, and spread out, thus distributing their thermal energy

Answer 43

CONVECTION

Question 44

occurs without the movement of matter; made of EM waves given off by moving particles; absorbed by materials

Answer 44

RADIATION

Question 45

# TRUE OR FALSE ALL TEMPERATURE CHANGES NEED NOT BE DUE TO HEAT ALONE

Answer 45

TRUE

Question 46

# TRUE OR FALSE ALL HEAT INTERACTION NEED NOT RESULT IN CHANGES IN TEMPERATURE

Answer 46

TRUE