Intro to thermodynamics.

Question 1

Thermochemistry

Answer 1

The study of heat transfer

Question 2

Heat energy is…… With……. Motions

Answer 2

Associated, molecular

Question 3

Heat always moves from the…… Object to the….. one

heat transfers until —— —— is established.

Answer 3

Hotter, cooler, thermal equilibrium

Question 4

Heat (………. q) is the form of energy that ….. between two objects because of their……………….. …….. ……………….

Answer 4

Thermal energy, flows, Difference in temperature.

Question 5

Open System
1) matter can be lost through…… of the flask
Heat can be conducted through flask …..

Answer 5

Opening, walls

Question 6

Closed system,
stoppered, no… Can be….,
Heat can be…. Through the walls. This is a ///// system

Answer 6

Matter, lost, conducted, walls, closed

Question 7

Heat transfer is prevented by… Flask.
Matter cannot be transferred.
System is……..

Answer 7

Vacuum, isolated

Question 8

Specifc heat capacity is the amount of………. Required to change the….. Of a given amount of a material by…..

Answer 8

Heat, temperature, 1K

Question 9

Molar heat capacity, the amount of heat required to change the….. of…… ….. a….. By…..

Answer 9

Temperature, one mole, 1K

Question 10

Extensive property depends on the….. Of the…… Present

Answer 10

Quantity, substance.

Question 11

Intensive properties are…… of the quantity of the substance present e.g …….

Answer 11

Independent, density

Question 12

Enthalpy change the…. Energy transferred at……… By a…… Reaction or……

Answer 12

Heat,

Question 13

System

Answer 13

a specific part of the universe under study.

Question 14

……… is everything in the ………..outside the ……….

Answer 14

surroundings, universe, system.

Question 15

interconversion of Ek and Ep example

Answer 15

shm

Question 16

when container walls allow the passage of heat energy

Answer 16

diathermic

Question 17

when walls do not allow the passage of heat energy

Answer 17

Adiabatic

Question 18

heat capacity the—– —–required to change the ——– of a substance by ——-

Answer 18

heat energy, temperature,1K

Question 19

SPECIFIC HEAT CAPACITY

Answer 19

the heat required to change a given amount of material (1g) by 1 kelvin

Question 20

MOLAR HEAT CAPACITY (Cm)

Answer 20

the heat required to change the temperature of one mole of material by 1 kelvin

Question 21

Calorie ( cal ) is the amount of —- needed to raise the temperature of — —– of water 1°C

Answer 21

energy, one, gram

Question 22

kcal is the — needed to raise — of 1 kg of water

Answer 22

energy,temp

Question 23

The enthalpy change deltaH is the —— —– transferred at —– ——- by a chemical
reaction or process

Answer 23

heat energy, constant pressure

Question 24

Path Function: —- – —–whose values depend on
the —- – – —– from the initial state to the final state.
Example: ——- travelled, work performed

Answer 24

Properties or quantities, transition of a system, distance

Question 25

State function: Function that —– only on its —- —-

and not on any — —-

Answer 25

depends, current, state, past, behaviour.

Question 26

fusion

Answer 26

melting

Question 27

enthalpy of fusion: The energy required to ///// 1 mole of a pure substance at its ///// /////, [Tm] at 1 bar pressure

Answer 27

melt, melting point

Question 28

enthalpy of vaporization: The energy required to ///// 1 mole of a pure substance at its ///// /////, [Tb] at 1 bar pressure

Answer 28

evpourate, boiling point

Question 29

Latent heat is——- or—— of heat energy without a change in———

Answer 29

absorption, release, temperature