Understanding of Energy Changes and Rates of Reaction - Science Assignment Help

Assignment Task:

Task:

Curriculum Expectation D3. demonstrate an understanding of energy changes and rates of reaction.

1. If forming new bonds releases energy, how can a reaction ever be endothermic? (1 mark)

2. Metal A has a heat capacity of 0.450 J/go C while metal B has a heat capacity of 1.250 J/go C. If both metals are supplied with 1000.0 J of energy, which one will heat up more? Explain by describing what specific heat capacity defines (i.e. more than “this number is bigger/smaller”). (2 marks)

3. When there is going to be a frost in Florida, farmers will spray their crops with water before the frost hits thereby preventing the fruit from freezing. Using concepts from this unit, explain why this helps to save the fruit. (1 mark)

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