Question

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)

Answer 1

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.

Answer 2

thank you! ^ is right