Thermal properties of matter

0.0(0)
studied byStudied by 0 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/26

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

27 Terms

1
New cards

What is heat?

the energy transfered between the system and the enviroment due to a temperature difference

2
New cards

What are thermal interactions?

energy transfered between the system and the enviroment due to atomic level collisions

3
New cards

What is thermal equilibria?

No temperature difference

4
New cards

What is the Si unit for heat?

J

5
New cards

What is thermal energy?

thermal energy of the system is due to the motion of its atoms and molecules and the stretching/ compression of spring like molecular bonds

6
New cards

What is the definition of heat?

The energy transfered between the system and the environment as they interact

7
New cards

What is temperature?

a state variable which quantifies hotness and coldness of a system

related to the thermal energy per molecule

8
New cards

What is the specific heat of a substance?

The amount of energy required to raise the temperature of 1Kg of substance by 1K

C

9
New cards

What is the specific heat equation?

Q=MCAT

q= energy

c=specific heat

AT= temperature change

10
New cards

What is molar specific heat?

amount of energy required to raise the temperature of 1 mole of substance by 1 degree

11
New cards

What is the equation for molar specific heat?

Q=nC AT

12
New cards

What is the heat of transformation?

the amount of energy which causes 1Kg of substance to undergo a phase change

13
New cards

What is the equation for heat of transformation?

Q=ML

14
New cards

What is the specific heat of fusion?

Heat of transformation between and solid and a liquid

15
New cards

What is specific heat of vapourisation?

heat of transformation between a liquid and a gas

16
New cards

What is calorimetry?

  • systems thermally interacting with each other but isolated from everything else

  • heat energy transerred from the hotter to the colder system until thermal equailibria is reached

17
New cards

What are the equations for calorimetry?

Qnet = Q1 + Q2 = 0

18
New cards

What is the equation, specific heat of gases, constant volume

Q = n Cv AT

19
New cards

What is the equation, specific heat of gases, constant pressure

Q = n Cp AT

20
New cards

What is the equation which links specific heat at constant pressures and volumes?

Cp = Cv + R

  • Cp - specific heat at constant pressures

  • Cv- specific heat at constant volumes

  • R - ideal gas equation

21
New cards

What is a adiabatic process?

No heat energy is transfered q=0

22
New cards

How do you make a process adiabatic?

thermal insulation

rapid compression or expansion of the gas

23
New cards

What is the equation for the specific heat ratio of adiabatic processes?

γ=Cv​/Cp​​

24
New cards

What is the specific heat ratio for monatomic gases?

1.67

25
New cards

What is the specific heat ratio for diatomic gases?

1.4

26
New cards

What curve does adiabatic processes follow?

pV^γ=constant

27
New cards

What are useful adiabatic equations?

pf​Vf^γ​=pi​Vi^γ​

Tf​=Ti​(Vf​/Vi​​)^γ−1