Transfer Between Systems Quick Check
1.Which phrase defines activation energy?(1 point)
energy output when product bonds are formed
energy input needed to break bonds of reactants
energy stored in chemical bonds
energy required to break a chemical bond
2.Which phrase defines chemical potential energy?(1 point)
energy stored in chemical bonds
energy input needed to break reactant bonds
energy output when product bonds form
energy required to break a chemical bond
3.Which statement correctly explains a difference between white and red phosphorus? (1 point)
White phosphorus has less chemical potential energy than red phosphorus.
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White phosphorus has more chemical potential energy than red phosphorus.
White phosphorus has a higher activation energy than red phosphorus.
White phosphorus has a lower activation energy than red phosphorus.
4.How can the chemical potential energy in an endothermic reaction best be described?(1 point)
Reactants have higher chemical potential energy than products.
Products and reactants have the same chemical potential energy.
Product and reactant chemical potential energy varies in different environments.
Products have higher chemical potential energy than reactants.
5.How are activation energy and reaction rate most likely related?(1 point)
Higher activation energy results in a faster reaction rate.
Higher activation energy results in a slower reaction rate.
A faster reaction rate results in higher activation energy.
A faster reaction rate results in lower activation energy.
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4 answers
What are your choices?
2.energy stored in chemical bonds
3.White phosphorus has a lower activation energy than red phosphorus
4.Products have higher chemical potential energy than reactants.
5.Higher activation energy results in a slower reaction rate.