1. If a chemical cold pack weighing 28grams and at a temperature of -2C was left in a 25C room for 3 days, what would be the final temperature of the pack?
2. I have lab experiment where I was used Styrofoam cup with deionized water for the purpous to mesure temperature of the metal which previously I was boiled for 5min. Instead of Styrofoam cup, suggest a suitable replacement which can be used as a calorimeter?
3. How would the results for atomic weight have differed if the hot water was never brought to a boil?