THERMODYNAMICS

Question 1

is a branch of science that deals with the study of energy and its transformations

Answer 1

thermodynamics

Question 2

it came from the greek word “thermes” which means heat and “dynamo” which means power.

Answer 2

thermodynamics

Question 3

is a branch of chemistry that describes the energy changes that occur during a chemical reaction.

Answer 3

thermochemistry

Question 4

is a well defined part of the universe where thermodynamic processes takes place

Answer 4

system

Question 5

refers to everything outside that is cose contact with the system

Answer 5

surroundings

Question 6

is a closed surface surrounding a system

Answer 6

boundary

Question 7

is the system plus the surroundings

Answer 7

universe

Question 8

what are the three classifications of system?

Answer 8

open system
closed system
isolated system

Question 9

is a system wherein there is an exchange of energy with the surroundings

Answer 9

open system

Question 10

is a system wherein there is an exchange of matter with the surroundings but matter is unable to pass across the boundary

Answer 10

closed system

Question 11

is a system wherein there is no exchange of matter and energy with the surroundings

Answer 11

isolated system

Question 12

2 types of reactions

Answer 12

endothermic reaction and exothermic reaction

Question 13

is a reaction that the system absorbs hear or heat flows into the system from its surroundings

Answer 13

endothermic reaction

Question 14

is a reaction that releases heat from the system or heat flows out of the system into the surroundings

Answer 14

exothermic reaction

Question 15

if the heat is ADDED/ABSORBED to the system and work is done ON the system, what happens to internal energy?

Answer 15

increases

Question 16

if the heat LEAVES the system or heat is evolved and work is DONE by the system, the internal energy increases or decreases?

Answer 16

decreases