week 1

Question 1

what is thermodynamics

Answer 1

this is defined as the

“science of energy”

Question 2

what is classical thermodynamics

Answer 2

its the relationship between the bulk properties of matter

not examined under atomic level

Question 3

what is statistical thermodynamics

Answer 3

this is the relationship between the bulk properties in terms of ‘aggregation atoms’ (unlike classical and nit behavior of individual atoms)

Question 4

how many laws of thermodynamics are there

Answer 4

0, 1, 2, 3, 4

Question 5

what is zeroth law of thermodynamics

Answer 5

“if 2 bodies are in thermal equilibrium with a thrid body, they are also in thermal equilibrium with each other”

Question 6

what is first law of thermodynamics

Answer 6

“energy can be transformed from one form to an other, but quantity remains the same”

Question 7

what is second law of thermodynamics

Answer 7

“energy has quantity as well as quality”

Question 8

what is third law of thermodynamics

Answer 8

“no thermodynamic system can reach absolute zero kelvin “ (0 K - 273C)

Question 9

how should units be converted

Answer 9

from english units (foot, btu) to metric SI (KG, KJ)

1 BTU = 1.055 kJ

Question 10

what three things does the ‘thermodynamic system’ include

Answer 10

system
surrounding
boundary

Question 11

what is a system

Answer 11

collection of matter (like: liquid or gas), within a region/boundary

Question 12

what is a surrounding

Answer 12

this is a masss or region outside the system

Question 13

what is a boundary

Answer 13

real or imaginary surface that separates the system from its surroundings

Question 14

what is a closed thermodynamic system

Answer 14

this is a system which consists of a fixed amount of mass, which CANNOT flow across boundary only energy in the form of heat (Q) or work (W) can cross boundary in a closed system

Question 15

what is a open thermodynamic system, and what is it also known as

Answer 15

here mass CAN flow across the boundary as well as heat and work
this is also known as control volume

Question 16

what are the six basic properties of a thermodynamic system

Answer 16

pressure
volume
temperature
internal energy
enthalpy 
entropy

Question 17

what 2 things can properties of thermodynamic be

Answer 17

intensive or extensive properties of system

Question 18

what is an intensive property

Answer 18

this is a physical property that DO NOT depend on the amount of matter

Question 19

what is a extensive property

Answer 19

this is a physical property that DO depend on the amount of matter

Question 20

what is a thermodynamic state

Answer 20

this is a state or condiditon of a thermodynamic system described by a given set of properties (temperature, pressure, volume…) at a given point in the system