DSST Principles of Physical Science I Exam
If you think you have a firm understanding of physical science principles, such as those in introductory physics and chemistry, why not earn college credit for what you already know? The DSST exam program helps college students like you earn semester credit for material they learned through independent study or work experience. The DSST Principles of Physical Science I exam could be a good move for your college career.
Depending on the requirements of your school, passing the DSST Principles of Physical Science I exam may substitute for traditional classroom hours – allowing you to earn college credit for what you’ve learned in the past, and spend your money and time on higher-level courses toward your degree.
The DSST Principles of Physical Science I exam covers these topics:
- Miscellaneous questions dealing with general scientific principles or processes.
Because these topics are exceedingly broad in scope, you should focus your study efforts on exactly what a study guide will suggest. One of the best ways to study for this exam is to compare the detailed exam outline from a DSST study guide with the tables of contents for some of the suggested reference books, and then focus on the material that overlaps.
DSST Principles of Physical Science I Practice Questions
1. Which substance is most likely to be a solid at STP?
2. Which of the following tend to increase the melting point of a solid?
I. Increasing molecular weight
II. Decreasing polarity
III. Increasing surface area
A. I and II
D. I and III
3. A gas at constant volume is cooled. Which statement about the gas must be true?
A. The kinetic energy of the gas molecules has decreased
B. The gas has condensed to a liquid
C. The weight of the gas has decreased
D. The density of the gas has increased
4. A weather balloon is filled with 1000 mol of He gas at 25 °C and 101 kPa of pressure. What is the volume of the weather balloon?
A. 24518 m3
B. 24.5 m3
C. 2 m3
D. 245 m3
5. One mole of oxygen gas and two moles of hydrogen are combined in a sealed container at STP. Which of the following statements is true?
A. The mass of hydrogen gas is greater than the mass of oxygen
B. The volume of hydrogen is greater than the volume of oxygen
C. The hydrogen and oxygen will react to produce 2 mol of water
D. The partial pressure of hydrogen is greater than the partial pressure of oxygen
6. Graham’s law is best used to determine what relationship between two different materials?
A. pressure and volume
B. volume and temperature
C. mass and diffusion rate
D. Diffusion rate and temperature
7. Which is the correct order of increasing intermolecular attractive forces?
A. Dipole-dipole<ionic<hydrogen bonding<London dispersion
B. Ionic<dipole-dipole<London dispersion<hydrogen bonding
C. Hydrogen bonding<London dispersion<ionic<dipole-dipole
D. London dispersion<dipole-dipole<hydrogen bonding<ionic
8. One mole of an ideal gas is compressed to 10 L and heated to 25 °C. What is the pressure of the gas?
A. 2.4 KPa
B. 2.4 atm
C. 0.2 atm
D. 0.2 KPa
9. A 10 L cylinder contains 4 moles of oxygen, 3 moles of nitrogen and 7 moles of neon. The temperature of the cylinder is increased from 20 °C to 40 °C. Determine the partial pressure of neon in the cylinder as a percentage of the whole.
10. Three liquids, X, Y and Z are placed in separate flasks, each of which is suspended in a water bath at 75 °C. The boiling points of each liquid are:
X, 273 K
Y, 340 K
Z, 360 K
Which of the three liquids will begin to boil after warming to 75 °C?
A. X, Y, and Z
B. X and Z
C. X and Y
D. Y and Z