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Questions and Answers
What is the relation between enthalpy change and temperature change?
What is the relation between enthalpy change and temperature change?
- $\Delta H = q_p = mC_p \Delta T = VdC_p$
- $\Delta H = q_p = mC_p \Delta T = VdC_p \Delta T$ (correct)
- $\Delta H = mC_p \Delta T$
- $\Delta H = q_p = mC_p \Delta T$
Why are metallic calorimeters not used for measuring thermochemical changes?
Why are metallic calorimeters not used for measuring thermochemical changes?
- Metals have low thermal conductivity
- Metals may react with substances (correct)
- Metals are not readily available
- Metals have high heat capacity
What is the purpose of determining the calorimeter constant?
What is the purpose of determining the calorimeter constant?
- To determine the heat capacity of the solution
- To calculate the density of the solution
- To account for heat absorbed by calorimeter, thermometer, and stirrer (correct)
- To measure the volume of the solution
How is the calorimeter constant for a glass vessel determined?
How is the calorimeter constant for a glass vessel determined?
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Why is only the area of the calorimeter in contact with the liquid considered for absorbing maximum heat?
Why is only the area of the calorimeter in contact with the liquid considered for absorbing maximum heat?
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