A cold pack is snapped, and the chemical reaction causes the pack to feel cold. Which kind of reaction is this?
A: This is an exothermic reaction because the surroundings took energy from the system.
B: This is an endothermic reaction because the surroundings took energy from the system.
C: This is an exothermic reaction because the system took energy from the surroundings.
D: This is an endothermic reaction because the system took energy from the surroundings.
here are the answers
the change in energy in a system during an exothermic reaction
In the air, only the oxygen is part of the system.
The energy found in the reactants remains in the system, and the reactants also take energy from the surroundings
This is an endothermic reaction because the system took energy from the surroundings.
Energy is released by the formation of chemical bonds, and energy is absorbed when the bonds are broken.
This is an endothermic reaction because the system took energy from the surroundings.
science nerd is correct! Thank you
BEP is right!
To determine the correct answer, we need to understand the concepts of exothermic and endothermic reactions.
In an exothermic reaction, energy is released from the system into the surroundings. This results in a temperature increase in the surroundings and a feeling of warmth.
In an endothermic reaction, energy is absorbed by the system from the surroundings, leading to a decrease in temperature in the surroundings and a feeling of coldness.
In the given scenario, a cold pack is snapped and feels cold. This indicates that energy is being absorbed by the pack, resulting in a temperature decrease in the surroundings.
Now, let's analyze the options:
A: This option states that the surroundings took energy from the system, which is not correct.
B: This option states that the surroundings took energy from the system, which is correct.
C: This option states that the system took energy from the surroundings, which is not correct.
D: This option states that the system took energy from the surroundings, which is not correct.
Based on the explanations provided, the correct answer is B: This is an endothermic reaction because the surroundings took energy from the system.