Two substances in a glass beaker react chemically and the glass beaker becomes too hot to touch.
A. Is this an exothermic or endothermic reaction.
It would be exothermic, right? Because energy is released?
B. If the two substances are defined as the system, what constitutes the surroundings?
What? System? Surrounding? I'm confused..
the chemicals inside it reacts each other these energy trans fers to beaker and became hot when we touch it .
A. Yes, you are correct. In this case, it is an exothermic reaction because energy is being released in the form of heat. The glass beaker becoming too hot to touch is a clear indication of heat being given off.
B. In a chemical reaction, the system refers to the substances undergoing the reaction, while the surroundings refer to everything outside of the system. In this case, the surroundings would include the glass beaker itself, the air surrounding the beaker, and any other objects or materials in close proximity to the beaker.
A. Yes, you are correct. In an exothermic reaction, energy is released into the surroundings. This energy is often in the form of heat, causing the temperature of the surroundings (in this case, the glass beaker) to increase. Since the glass beaker becomes too hot to touch, it indicates that the reaction is exothermic.
B. In chemistry, a system refers to the specific substances or chemical reactants that are the focus of our study or analysis. In this case, the two substances in the glass beaker would be considered the system. The surroundings, on the other hand, refer to everything outside of the system that can influence or be influenced by the system. In this particular scenario, the surroundings would include the air surrounding the beaker, any objects in close proximity to the beaker, or any potential heat exchange with the environment. The glass beaker itself can also be considered part of the surroundings, as it is influenced by the energy released in the reaction.
a. correct
b. generally, the surroundings are everthing not in the system.