Calorimeter 1 and Calorimeter 2 were each electrically calibrated - VCE - SSCE Chemistry - Question 26 - 2022 - Paper 1
Question 26
Calorimeter 1 and Calorimeter 2 were each electrically calibrated. The same current, voltage and time were used to calibrate each calorimeter.
A reaction was undert... show full transcript
Worked Solution & Example Answer:Calorimeter 1 and Calorimeter 2 were each electrically calibrated - VCE - SSCE Chemistry - Question 26 - 2022 - Paper 1
Step 1
A. Only Calorimeter 1 can be used to calculate ΔH.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is inaccurate as both calorimeters can potentially be used to calculate ΔH. The ability to do so depends on their calibration and specific data acquired during the reaction.
Step 2
B. Calorimeter 2 has better insulation than Calorimeter 1.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Given the temperature graphs, Calorimeter 2 exhibits a more stable temperature increase over time, which can indicate better insulation. Therefore, this statement is likely correct.
Step 3
C. The calibration factor for Calorimeter 2 is higher than the calibration factor for Calorimeter 1.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement cannot be validated without specific calibration data; thus, it remains uncertain.
Step 4
D. During the calibration, the temperature increase of Calorimeter 2 was greater than the temperature increase of Calorimeter 1.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The observed graphs indicate a pronounced temperature change in Calorimeter 2, suggesting a greater temperature increase compared to Calorimeter 1. Hence, this statement is also likely correct.
