AP化学真题FR解析 教你如何刷题才能有效复习

2021的AP化学考试已经开启了白天倒计时，还有比winter vacation更适合刷题的黄金时间吗？本文就来带大家练2道2019年的AP化学真题（FR）。帮助你练考试手感，更练答题思路。

AP化学真题题型分类（FR）

根据CollegeBoard官方解析，化学简答题的题型通常包括如下类型： 

1.Experimentaldesign实验设计

2. Analysis of authentic lab data and observations to identify patterns or explain phenomena分析真实的实验室数据并观察结果，以识别某种模式或解释某种现象

3. Analysis of authentic lab data and observations to identify patterns or explain phenomena 创建或分析原子和分子视图以解释观察结果 ‘

4. Articulating and then translating between representations 清晰表达并翻译不同的展示图像5. Following a logical/analytical pathway to solve a problem 使用逻辑/分析途径来解决问题 

AP化学真题（FR）2019

题目：

2. Answer the following questions relating to the chemistry of the halogens.

(a) The molecular formulas of diatomic bromine, chlorine, fluorine, and iodine are written below. Circle the formula of the molecule that has the longest bond length. Justify your choice in terms of atomic structure.

解析

题目：

4. A student is doing experiments with СО2(g). Originally, a sample of the gas is in a rigid container at 299 K and 0.70 atm. The student increases the temperature of the CO2(g) in the container to 425 K.

(а) Describe the efect of raising the temperature on the motion of the CO2(g) molecules.

(b) Calculate the pressure of the CO2(g) in the container at 425 K.

(с) In terms of kinetic molecular theory, briefly explain why the pressure of the CO2(g) in the container changes as it is heated to 425 K.

(d) The student measures the actual pressure of the CO2(g) in the container at 425 K and observes that itis less than the pressure predicted by the ideal gas law. Explain this observation.

解析：

今日份AP化学真题就分享到这里。广度是AP化学的复习难点，加上今年这次AP考试将是前年AP各科目改革后的第一次考试。如果你还不知道如何适应新考纲针对性复习，点击预约试听【唯寻AP复习冲刺班】，知名大学海归资深导师带班，系统前测精准摸底，根据学员进度定制课程，从近年真题中解码考点，训练考试状态，启发国际课程思维，培养学员世界知名大学要求的学习力。

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