Question

Given below are two statements regarding the use of a bomb calorimeter: 
Statement-I: \(\Delta U\) can be measured by bomb calorimeter. 
Statement-II: Heat is not transferred from calorimeter to surroundings.

• A. Both Statement-I and Statement-II are correct
• B. Both Statement-I and Statement-II are not correct
• C. Statement-I is correct but Statement-II is not correct
• D. Statement-I is not correct but Statement-II is correct

Hint:

Remember, bomb calorimeters are adiabatic systems specifically designed to prevent heat exchange with the environment to accurately measure internal energy changes of reactions.

Answer 1

The Correct Option is A

Analysis of Each Statement: 
Statement-I Analysis: A bomb calorimeter is designed to measure the change in internal energy (\(\Delta U\)) of a reaction that occurs at constant volume. Since no work is done by volume expansion, the heat change measured represents the change in internal energy. 
Statement-II Analysis: In a bomb calorimeter, the system is designed to be adiabatic, meaning that ideally, no heat is transferred to or from the surroundings during the measurement. This isolation ensures that the heat measured is only due to the reaction itself.