2020 Q9 ( 28% correct ans)
What is the calibration factor for this calorimeter?
Calorimetry Exam Qs
Quiz
•
Chemistry
•
12th Grade
•
Hard
Janet Chua
Used 3+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2020 Q9 ( 28% correct ans)
What is the calibration factor for this calorimeter?
125 J °C−1
820 J °C−1
847 J °C−1
875 J °C−1
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
2020 Q10 ( 26% correct ans)
This type of calorimeter
has no heat loss.
can be used for bomb calorimetry.
requires electrical calibration in order to determine the calibration factor.
measures energy changes that can be measured in a bomb calorimeter.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2019 Q2
The thermochemical equation for the complete combustion of glucose is
C6H12O6 + 6O2 → 6CO2 + 6H2O ΔH = −2860 kJ mol−1
C6H12O6 + 3O2 → 6CO2 + 6H2O ΔH = −2011 kJ mol−1
C6H12O6 → 2C2H5OH + 2CO2 ΔH = −69 kJ mol−1
C6H12O6 → 2C3H6O3 ΔH = −120 kJ mol−1
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2019 Q26 (51% correct ans)
The calibration factor of a bomb calorimeter was determined by connecting the calorimeter to a power supply. The
calibration was done using 100 mL of water, 6.5 V and a current of 3.6 A for 4.0 minutes. The temperature of the
water increased by 0.48 °C during the calibration.
4.20 g of sucrose underwent complete combustion in the bomb calorimeter. The temperature of the 100 mL of water
increased from 19.6 °C to 25.8 °C.
M(C12H22O11) = 342 g mol−1
The experimental heat of combustion of pure sucrose, in joules per gram, is
5.9 × 106
7.3 × 104
1.7 × 104
1.2 × 104
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2019 NHT Q28
The component of this breakfast that provides the largest amount of energy per serve is the
avocado.
egg.
fetta cheese.
rye bread.
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2018 Q9
(69% correct ans)
100 g of fish
80 g of bread
40 g of cheese
258 g (250 mL) of milk
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2017 Q9 (29% correct ans)
Using the information above, the percentage energy content due to protein in an average serving size of this muesli is
31.2%
29.3%
14.0%
13.2%
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