The table shows the thermodynamic data for a reaction. thermodynamic data energy of the reactants energy of the products activation energy 160 kj 370 kj 260 kj which of the following statements explains if the reaction is endothermic or exothermic? the activation energy is lower than the change in enthalpy, so it is an exothermic reaction. the activation energy is higher than the change in enthalpy, so it is an endothermic reaction. the change in enthalpy is −210 kj, so it is an exothermic reaction. the change in enthalpy is +210 kj, so it is an endothermic reaction.

The change in enthalpy is +210 kJ, so it is an endothermic reaction.

Explanation:

The change in enthalpy = The energy of products - the energy of reactants.

For this reaction: The change in enthalpy = The energy of products - the energy of reactants = 370 kJ - 160 kJ = + 210 kJ.

So, the right choice is: The change in enthalpy is +210 kJ, so it is an endothermic reaction.

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explanation:

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.