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March 25, 2017

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H6P6: Urbium Oxide

First Part of the Question:

Urbium (Ur) is an upscale element found in big cities. Its oxide (UrO2) is not very stable and decomposes readily at temperatures exceeding 66∘ C. The figure below shows how the rate of reaction varies with the concentration of UrO2 at 75∘ C.

The rate r is in units of M⋅s−1 and the concentration c of UrO2 is in units of M (mole⋅L−1). The slope has a value of 1.34 and the intercept has a value of 1.51. What is the order of reaction for the decomposition of urbium oxide?


Second part of the Question:

Select the graph below that best represents how the rate of reaction varies with concentration of urbium oxide at 100∘ C (red) compared with the rate versus concentration at 75∘ C (black).
A)
B)
C)
D)

  • Chemistry - ,

    second part = B

  • Chemistry - ,

    Noted.

  • Chemistry - ,

    Any idea for The first part?

  • Chemistry - ,

    The first part:
    1.34

  • Chemistry - ,

    Thank you!

  • Chemistry - ,

    Please do not answer this post. This question is a part of the MIT edx 3.091 solid state chemistry curriculum, and posting or using this information is in direct violation of the honor code. Thank you :)

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