Thermochemistry

Question 1

• study of the heat relate to chemical reactions or physical transformation
• reaction may release or absorb energy, and a phase change may do the same

Answer 1

thermochemistry

Question 2

the part of the universe on which attention is focused

Answer 2

thermodynamic system

Question 3

everything else in the vicinity

Answer 3

thermodynamic surroundings

Question 4

the system across the boundary of which transfer both mass as well as energy can take place across the boundary and can exchange mass and heat with surroundings

Answer 4

open system

Question 5

the system of fixed mas across the boundary of which no mass transfer can take place only transfer for energy, not mass

Answer 5

closed system

Question 6

both the mass as well as the energy content remains constant, no transfer of mas and energy

Answer 6

isolated system

Question 7

chemical equation that includes the amount of energy, in the form of heat that is transferred in the reaction

Answer 7

thermochemical equation

Question 8

used to determine the standard enthalpy change or enthalpy of reaction or heat of reaction for a given thermochemical equation

Answer 8

standard heat of formation