A scientist wants to perform a reaction in a vacuum chamber to control the experiment as much as possible and to prevent other variables from impacting the reaction. The scientist is trying to determine if the reaction is endothermic or exothermic and measure how much energy is absorbed or given off. Is this a sound approach? Why or why not? In three to five sentences, explain your reasoning.(4 points)
A cylindrical tank used to measure heat inflow and outflow is a calorimeter. A calorimeter depends up heat transfer by conduction or convection. Heat does NOT transfer in a vacuum by conduction nor by convection. So such a device would measure radiation transfer but not the other forms to accurately assess the exothermic or endothermic nature of a material. I'm sure you can put all of this into better form in your own words.
thank you! ^ is right
Yes, using a vacuum chamber is a sound approach to control the experiment and minimize the impact of other variables on the reaction. By creating a vacuum environment, the scientist eliminates the presence of any unwanted gases, which could potentially interfere with the reaction or lead to inaccurate measurements. Additionally, the absence of air pressure allows for better control over temperature, which is crucial for determining if the reaction is endothermic (absorbing energy) or exothermic (releasing energy). By carefully measuring the changes in energy within the vacuum chamber, the scientist can accurately determine the nature of the reaction and quantify the amount of energy absorbed or given off.
Yes, conducting the reaction in a vacuum chamber is a sound approach for determining if the reaction is endothermic or exothermic and measuring the energy changes. A vacuum chamber eliminates the interference of external factors such as air pressure, which can affect the reaction. By isolating the reaction from atmospheric conditions, the scientist can accurately measure the energy changes associated with the reaction. Additionally, controlling variables allows for more precise calculations of the amount of energy absorbed or released during the reaction.
