What type of calorimeter would be best to use if you wanted to measure the heat that is released when gasoline is burned?

Constant Volume Calorimeter

Explanation:

In order to measure the heat released in burning of a gasoline, we generally use closed calorimeter. It is a constant volume calorimeter.

Most common example of such calorimeter is Bomb calorimeter.

We use closed calorimeter or constant volume calorimeter as large amount of heat is released during combustion of a fuel or gasoline.

This answer is B and C.

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