bomb calorimeter

[Kelly Duong 2D]

Can someone explain why the combustion of glucose in a bomb calorimeter is considered isolated? Why isn't it considered closed?

[Darlene Fung 1J]

The combustion of glucose in a bomb calorimeter is isolated because no matter or energy can be exchanged with the environment.

[Matt Villanueva 3H]

Furthermore, in a closed system, energy can be exchanged between a system and its surroundings, but its matter cannot be. In the case of burning glucose within a bomb calorimeter, its matter cannot be exchanged; however, neither can its energy, thus making it an isolated system and not a closed one. Because the bomb calorimeter is a well-insulated container, no matter or energy is being exchanged into the surroundings.