What kinds of questions is science UNABLE to answer? Provide an example.
1 answer:
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Answer:
Explanation:
1. Energy balance
By the first law of thermodynamics, considering the system is closed and isolated, the heat released by the 237 g piece of molybdenum equals the heat absorbed by the 244 g of water.
2. Heat equation
The heat released or absorbed by a substance is proportional to the product of the mass, the specific heat and the change in temperature
- Q = m × C × ΔT
3. Heat released by the 237 g piece of molybdenum
At equilibrium:
- Q₁ = 237 g × C × (100.0ºC - 15.3ºC)
4. Heat absorbed by the 244 g of water
At equilibrium:
- Q₂ = 244 g × 4.184 J/gºC × (15.3ºC - 10.0ºC)
5. Solve for C from Q₁ = Q₂
- 237 g × C × (100.0ºC - 15.3ºC) = 244 g × 4.184 J/gºC × (15.3ºC - 10.0ºC)
- 20,073.9 × C = 5,410.7488 J/gºC
- C = 0.2695 J/gºC
The result must be reported with 3 significant figures: C = 0.270 J/gºC.