2010 AP Chemistry化學(xué)真題系列之簡答題Form B免費下載

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2010 AP Chemistry Free-Response Questions （Form B）Free Download

2010 AP 化學(xué)簡答題 Form B部分免費下載

考試時會提供花常用的等式與常量

以及化學(xué)元素周期表

此套Section II試卷共6題

每道大題含有不同數(shù)量的小題

共計時95分鐘

Part A計55分鐘，第1-3題各20分

Part B計40分鐘，第四題值10分，第5第6題各15分

下載方式請點擊下方鏈接

部分真題預(yù)覽：

Section II, Part A,YOU MAY USE YOUR CALCULATOR FOR PART A可使用計算器：

1）The compound butane, C₄H₁₀ , occurs in two isomeric forms, n-butane and isobutane (2-methyl propane). Both compounds exist as gases at 25°C and 1.0 atm.

1. Draw the structural formula of each of the isomers (include all atoms). Clearly label each structure.
2. On the basis of molecular structure, identify the isomer that has the higher boiling point. Justify your answer.
   The two isomers exist in equilibrium as represented by the equation below.
   
   Suppose that a 0.010 mol sample of pure n-butane is placed in an evacuated 1.0 L rigid container at 25°C.
3. Write the expression for the equilibrium constant, K_c , for the reaction.
4. Calculate the initial pressure in the container when the n-butane is first introduced (before the reaction starts).
5. The n-butane reacts until equilibrium has been established at 25°C.
   1. Calculate the total pressure in the container at equilibrium. Justify your answer.
   2. Calculate the molar concentration of each species at equilibrium.
   3. If the volume of the system is reduced to half of its original volume, what will be the newconcentration of n-butane after equilibrium has been reestablished at 25°C ? Justify your answer.
      Suppose that in another experiment a 0.010 mol sample of pure isobutane is placed in an evacuated 1.0 L rigid container and allowed to come to equilibrium at 25°C.
6. Calculate the molar concentration of each species after equilibrium has been established.

 

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2010 AP Chemistry Free-Response Questions Free Download

2010 AP 化學(xué)簡答題部分免費下載

考試時會提供花常用的等式與常量

以及化學(xué)元素周期表

此套Section II試卷共6題

每道大題含有不同數(shù)量的小題

共計時95分鐘

Part A計55分鐘，第1-3題各20分

Part B計40分鐘，第四題值10分，第5第6題各15分

下載方式請點擊下方鏈接

2010 AP Chemistry FRQ真題題目

 

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