WorksheetsAccel Sem 2 Units 7 & 8 Review
Total questions: 22
Worksheet time: 44mins
What letter represents the melting point?
A
B
C
D
E
What letter represents the gaseous phase in the diagram?
A
B
C
D
E
How are pressure and temperature related?
directly
indirectly
If pressure increases the volume ________.
increases
decreases
stays the same
If the temperature increases then the volume _______.
increases
decreases
stays the same
If the # of moles increases then the pressure _______ which would be a ______ relationship.
increases, direct
decreases, direct
increases, indirect
decreases, indirect
If a sample of methane is 1000 mL at 98.6 kPa and 25 oC is given a pressure of 108.5 kPa and a volume of 900 mL, what is the temperature?
3.23 x 107
295
248
301
How many moles of gas are in a 30.0 liter scuba canister if the temperature of the canister is 300.0 K and the pressure is 200.0 atmospheres?
244
0.00411
2.44 x 104
20
If excess HCl is dripped onto 15.0 g of KMnO4, what volume of Cl2 will be produced at 15 ◦C and 0.959 atm?
2 KMnO4(aq) + 16 HCl(aq) --> 2 KCl(aq) + 2 MnCl2(aq) + 8 H2O(l) +5 Cl2(g)
2.34 L
5.84 L
18.7 L
0.304 L
How many liters does 3.75 mol of nitrogen gas occupy at STP?
6.00 L
0.167 L
84.0 L
0.308 L
A quantity of water is heated from 25.0 oC to 36.4 oC by absorbing 325 J of heat energy. What is the mass of the water?
15500
0.147
3710
6.81
If the total air pressure in a furnace is 0.99 atm, and the partial pressure of carbon dioxide is 0.05 atm, and the partial pressure of hydrogen sulfide is 0.02 atm, what is the partial pressure of the remaining air
1.06
0.07
0.92
14.1
Estimate the amount of energy absorbed/released for the reaction below using bond energies: H2 (g) + Cl2 (g) --> 2 HCl (g)
-184 kJ
-1540 kJ
184 kJ
247 kJ
+ΔH
endothermic
exothermic
H2O(l) --> H2O(g)
endothermic
exothermic
-ΔH
endothermic
exothermic
2H2O2 (l) --> 2H2O(l) + O2 (g) + 200kJ
endothermic
exothermic
> H2O(l) --> H2O(s)
endothermic
exothermic
2 N2O5 (g) + 110 kJ --> 4NO2 (g) + O2 (g)
endothermic
exothermic
Calculate the ΔHrxn for the following equation.
NaOH(s) + HCl(g) ----> NaCl(s) + H2O(g)
134.9 kJ
-149.5 kJ
-134.9 kJ
149.5 kJ
If the standard enthalpy of formation of H2SO4 (l) is -812.2 kJ/mol, calculate the amount of energy released when 1000 g of sulfur trioxide reacts according to the equation: SO3 (g) + H2O(l) --> H2SO4 (l)
12.5 kJ
10,145 kJ
812,200 kJ
1.23 kJ
Calculate the free energy for this reaction at 298 K (room temperature). Determine if the reaction is spontaneous.
O2 + O --> O3
ΔH = -106.5kJ
ΔS = -127.4 J/K
68.5 kJ
spontaneous
-68.5 kJ
nonspontaneous
-68.5 kJ
spontaneous
68.5
nonspontaneous
