Answer: The temperature will decrease, so B
Explanation:
- Endothermic means heat into the system, the chemical system (the isolated medium, e.g reaction in a cup} will take in heat energy from the surroundings, so the temperature would increase, however any energy gained by the chemical system is balanced by the same energy loss by the surroundings, as a result ΔH will be positive. The temperature of the surroundings will decrease as they lose energy. It depends on what system you are referring to to, the one involved in the reaction increases, but the surroundings decrease.
- An endothermic reaction will occurs when the energy used to break the bonds in the reactants is greater than the energy given to surroundings/out when bonds are formed in the products. This means that overall the reaction takes in energy, therefore there is a temperature decrease in the surroundings.
- A system is a fancy way of saying all the chemical involved in the reaction.
Mark as brainliest, as it was my first question also if the reaction is reversible you can use a little acronym, intendo d(e)X, increase in temperature= endothermic reaction, and d(e) X decrease in temperature=exothermic, only apply this if the reaction is reversible. Hope that helps
