When energy is absorbed, what happens to the energy of the system (the pack)?

What is i fracture in the crust called when land move up, down or sideways

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?

What occurs when a cell engulfs large food particals