1. Why is it not possible to reuse a heat pack in term of the chemistry? 2. Comp
ID: 961420 • Letter: 1
Question
1. Why is it not possible to reuse a heat pack in term of the chemistry?
2. Compare the specific heat of water to the specific heat of metal (Copper). Which would heat up faster (with less energy required)?
3. Why would metal make a poor ingredient in a heat pack?
4. If there was a delay between measuring the initial temperature of a hot object and its transfer to the calorimeter, how would the heat capacity of the object be affected? How would the calculation of the heat capacity of the calorimeter be affected (too high, too low, or no affect)?
Explanation / Answer
2. Specific Heat of copper is lower than that of water. Hence copper will heat quickly than water. This is because, Specific heat capacity is the measurement of how much energy (in J) has to be added to 1 kg of a substance to increase the temperature of that substance by 1oC.
3. Metal in a heat pack will be a poor ingredient as it after getting heated it will cool down quickly as it has low specific heat.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.