Thermochemistry

Question 1

______ and ______ are not state functions

Answer 1

Work and Q (heat)

Question 2

+ w = work done ___ system
- w = work done ___ system

Answer 2

+ w = on
- w = by
(chem = add-on/subtract by)

Question 3

Which follow isochoric conditions

Answer 3

Isochoric conditions means w = 0
Solids liquids and sealed gases
so Q = ∆E

Question 4

∆Hcombustion is always

Answer 4

Exothermic

Question 5

Order of negativity in standard states ∆H

Answer 5

Solid then liquid then gas (so if gas is standard state then liq and sol states are neg)

Question 6

∆Hneutralization is always

Answer 6

Exothermic

Question 7

∆Hatomization is always

Answer 7

Endothermic

Question 8

Molar specific heat capacity will always be ____ than specific heat capacity

Answer 8

Greater than

Question 9

Calorimeter

Answer 9

Device used to measure standard enthalpy

Question 10

Spontaneous reactions

Answer 10

Burning of coal
Neutralization
Evaporation

Question 11

When ∆H = q
when ∆E = q

Answer 11

∆H = q means constant p
∆E = q means constant v (eevie)

Question 12

G —> L —> S is

Answer 12

Exothermic (Exo is gls (jealous))

Question 13

SI unit of specific heat capacity

Answer 13

J g-1 K-1

Question 14

Strong acid/base kJ

Answer 14

-57.5 kJ
Anything less is a weak acid/base