Practice - Measuring Enthalpy Changes Experimentally
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is a coffee-cup calorimeter used for?
💡 Hint: Think about the type of reactions used in school labs.
Define bomb calorimeter.
💡 Hint: Consider why it is sealed and what types of reactions it measures.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What type of calorimeter is primarily used for measuring heat changes in aqueous reactions?
💡 Hint: Think about the name of the calorimeters.
True or False: A bomb calorimeter measures heat changes at constant pressure.
💡 Hint: Recall what type of reactions each calorimeter measures.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A coffee-cup calorimeter experiment involves mixing 100 mL of 1 M NaOH with 100 mL of 1 M HCl. The initial temperature is 25°C, and the final temperature after the reaction is 35°C. Calculate the heat change of the reaction. Assume the density of the solution is 1 g/mL and the specific heat capacity is 4.18 J/(g·°C).
💡 Hint: Use the formula for heat absorbed as q = m × c × ΔT.
In a bomb calorimeter, 0.50 g of glucose (C6H12O6) is combusted, leading to a temperature rise of 4.0°C in a calorimeter with a heat capacity of 10,000 J/°C. Calculate the heat released during the combustion of glucose.
💡 Hint: Remember to account for the sign of heat flow in bomb calorimetry.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.