ELL Level 2 - Equilibrium Observations 1
Authored by Lesley Elms
Chemistry
5th Grade
Used 3+ times
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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
PCl5 (g) ⇌ PCl3(g) + Cl2(g) Endothermic
COLOURLESS COLOURLESS GREEN GAS
What is observed if the pressure is decreased
No change
green fades
Darker green
Can not tell from information given
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
N2O4 (g) ⇌ 2NO2(g) ∆H = + 57.2 kJ.mol-1
(N2O4 (g) is colourless ) (NO2(g) is brown)
INCREASE TEMPERATURE
No change
Lighter brown
Darker brown
Can not tell from information given
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
BiCl3 + H2O ⇌ BiOCl + 2HCl
(BiCl3 is Colourless ) (BiOCl is milky)
Adding water
No change
More milky
Less milky
Can not tell from information given
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
PCl5 (g) ⇌ PCl3(g) + Cl2(g) Endothermic
(PCl5(g) and PCl3(g) are colourless ) (Cl2(g) is green)
INCREASE TEMPERATURE
No change
green fades
Darker green
Can not tell from information given
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
H2 (g) + I2 (g) ⇌ 2HI (g) Enthalpy is -ve
(H2(g) and HI(g) are colourless ) (I2(g) is purple)
REMOVE hydrogen gas
No change
Purple fades
Darker purple
Can not tell from information given
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
BiCl3 + H2O ⇌ BiOCl + 2HCl
(BiCl3 is Colourless ) (BiOCl is milky)
Adding HCl
No change
More milky
Less milky
Can not tell from information given
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
H2 (g) + I2 (g) ⇌ 2HI (g) Enthalpy is -ve
(H2(g) and HI(g) are colourless ) (I2(g) is purple)
ADD A CATALYST
No change
Purple fades
Darker purple
Can not tell from information given
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