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Questions and Answers
What is the total heat absorbed by the water and the metal case of the box during the combustion?
What is the total heat absorbed by the water and the metal case of the box during the combustion?
- 7.42 kJ
- 5.12 kJ (correct)
- 4.24 kJ
- 6.67 kJ
If the heat capacity of the system was 3.5 kJ/ o C instead of 2.82 kJ/ o C, what would be the new temperature increase during combustion?
If the heat capacity of the system was 3.5 kJ/ o C instead of 2.82 kJ/ o C, what would be the new temperature increase during combustion?
- 20.15 o C to 24.36 o C
- 22.73 o C to 26.95 o C
- 25.50 o C to 29.72 o C
- 28.37 o C to 32.59 o C (correct)
What is the increase in temperature of the water sample after absorbing 2.00 kJ of heat?
What is the increase in temperature of the water sample after absorbing 2.00 kJ of heat?
- 6.62 o C (correct)
- 0.01 o C
- 13.3 o C
- 1.51 o C
If the heat absorbed by the water sample was 3.00 kJ instead of 2.00 kJ, what would be the estimated increase in temperature?
If the heat absorbed by the water sample was 3.00 kJ instead of 2.00 kJ, what would be the estimated increase in temperature?
If the specific heat of the water sample was 5.00 J g-1 o C-1 instead of 4.184 J g-1 o C-1, what would be the estimated increase in temperature after absorbing 2.00 kJ of heat?
If the specific heat of the water sample was 5.00 J g-1 o C-1 instead of 4.184 J g-1 o C-1, what would be the estimated increase in temperature after absorbing 2.00 kJ of heat?
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Study Notes
Heat Absorption and Temperature Changes
- Total heat absorbed by the water and the metal case of the box during combustion is not specified, but it can be calculated.
- Heat capacity of the system is 2.82 kJ/°C, but if it were 3.5 kJ/°C, the new temperature increase during combustion would be different.
- When 2.00 kJ of heat is absorbed by the water sample, the temperature increase can be calculated.
- If the heat absorbed by the water sample was 3.00 kJ, the estimated increase in temperature would be different.
- The specific heat of the water sample is 4.184 J g-1 °C-1, but if it were 5.00 J g-1 °C-1, the estimated increase in temperature after absorbing 2.00 kJ of heat would be different.
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