We are open Saturday and Sunday!

Call Now to Set Up Tutoring:

(888) 888-0446

SAT II Chemistry : Gases

Study concepts, example questions & explanations for SAT II Chemistry

Create An Account

All SAT II Chemistry Resources

54 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #1 : Gas Laws

Suppose that an ideal gas at $0^{\circ}\text{C}$ and 2.0 atm has a volume of 11.2 cubic meters. Which of the following expressions represents the volume of the gas, in cubic meters, if the temperature were increased by $50^{\circ}\text{C}$ and the pressure decreased to 1.5 atm?

Possible Answers:

$11.2\text{ m}^3\times\frac{50\text{ K}}{0\text{ K}}\times\frac{1.5\text{ atm}}{2.0\text{ atm}}$

$11.2\text{ m}^3\times\frac{323\text{ K}}{273\text{ K}}\times\frac{1.5\text{ atm}}{2.0\text{ atm}}$

$11.2\text{ m}^3\times\frac{323\text{ K}}{273\text{ K}}\times\frac{2.0\text{ atm}}{1.5\text{ atm}}$

$11.2\text{ m}^3\times\frac{273\text{ K}}{323\text{ K}}\times\frac{2.0\text{ atm}}{1.5\text{ atm}}$

$11.2\text{ m}^3\times\frac{273\text{ K}}{323\text{ K}}\times\frac{1.5\text{ atm}}{2.0\text{ atm}}$

Correct answer:

$11.2\text{ m}^3\times\frac{323\text{ K}}{273\text{ K}}\times\frac{2.0\text{ atm}}{1.5\text{ atm}}$

Explanation:

First of all, the unit degrees Celsius should be converted to Kelvins by adding 273. This means that the temperature increases from 273 K to 323 K.

Next, the combined gas law can be used.

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

Plugging in the known values gives

$\frac{2.0\text{ atm}\times11.2\text{ m}^3}{273\text{ K}}=\frac{1.5\text{ atm}\times V_2}{323\text{ K}}$

and solving for the volume gives

$V_2=\frac{2.0\text{ atm}\times11.2\text{ m}^3\times323\text{ K}}{1.5\text{ atm}\times273\text{ K}}$

Rearranging shows this is clearly equivalent to the correct answer, $11.2\text{ m}^3\times\frac{323\text{ K}}{273\text{ K}}\times\frac{2.0\text{ atm}}{1.5\text{ atm}}$ .

Report an Error

Example Question #1 : Effusion

How much faster is the rate of effusion of $H_2 _{(g)}$ than the rate of effusion of $H_2O_{(g)}$ ?

Possible Answers:

$\frac{1}{2}$

$\frac{1}{3}$

Correct answer:

Explanation:

By Graham's Law, $\frac{Rate_1}{Rate_2}=\sqrt{\frac{M_2}{M_1}}$ . The molar mass of $H_2_{(g)}$ is 2 g/mol and the molar mass of $H_2O_{(g)}$ is 18 g/mol. Thus, $\sqrt{\frac{18}{2}}=\sqrt{9}=3$

Report an Error

View SAT Subject Test in Chemistry Tutors

Anu
Certified Tutor

The University of Texas at Austin, PHD, Medicinal Chemistry.

View SAT Subject Test in Chemistry Tutors

Gregory
Certified Tutor

Pennsylvania State University-Main Campus, Bachelor of Science, Chemical Engineering. Carnegie Mellon University, Doctor of P...

View SAT Subject Test in Chemistry Tutors

Luu Chi Hieu
Certified Tutor

The University of Texas at Dallas, Bachelor of Science, Computer Science.

All SAT II Chemistry Resources

54 Practice Tests Question of the Day Flashcards Learn by Concept

Popular Subjects

MCAT Tutors in Dallas Fort Worth, Spanish Tutors in Phoenix, Physics Tutors in Phoenix, French Tutors in New York City, Reading Tutors in Atlanta, Spanish Tutors in Denver, Computer Science Tutors in Phoenix, English Tutors in Philadelphia, Reading Tutors in Denver, Spanish Tutors in Dallas Fort Worth

Popular Courses & Classes

GRE Courses & Classes in Houston, GMAT Courses & Classes in Washington DC, ISEE Courses & Classes in San Francisco-Bay Area, Spanish Courses & Classes in Miami, ACT Courses & Classes in Phoenix, MCAT Courses & Classes in San Francisco-Bay Area, GRE Courses & Classes in Chicago, Spanish Courses & Classes in San Diego, MCAT Courses & Classes in Phoenix, GRE Courses & Classes in Miami

Popular Test Prep

SAT Test Prep in Los Angeles, LSAT Test Prep in Los Angeles, SAT Test Prep in San Diego, ISEE Test Prep in Seattle, GMAT Test Prep in Washington DC, GRE Test Prep in Chicago, ISEE Test Prep in Phoenix, ISEE Test Prep in San Francisco-Bay Area, ACT Test Prep in Atlanta, GRE Test Prep in Seattle

DMCA Complaint

If you believe that content available by means of the Website (as defined in our Terms of Service) infringes one or more of your copyrights, please notify us by providing a written notice (“Infringement Notice”) containing the information described below to the designated agent listed below. If Varsity Tutors takes action in response to an Infringement Notice, it will make a good faith attempt to contact the party that made such content available by means of the most recent email address, if any, provided by such party to Varsity Tutors.

Your Infringement Notice may be forwarded to the party that made the content available or to third parties such as ChillingEffects.org.

Please be advised that you will be liable for damages (including costs and attorneys’ fees) if you materially misrepresent that a product or activity is infringing your copyrights. Thus, if you are not sure content located on or linked-to by the Website infringes your copyright, you should consider first contacting an attorney.

Please follow these steps to file a notice:

You must include the following:

A physical or electronic signature of the copyright owner or a person authorized to act on their behalf; An identification of the copyright claimed to have been infringed; A description of the nature and exact location of the content that you claim to infringe your copyright, in \ sufficient detail to permit Varsity Tutors to find and positively identify that content; for example we require a link to the specific question (not just the name of the question) that contains the content and a description of which specific portion of the question – an image, a link, the text, etc – your complaint refers to; Your name, address, telephone number and email address; and A statement by you: (a) that you believe in good faith that the use of the content that you claim to infringe your copyright is not authorized by law, or by the copyright owner or such owner’s agent; (b) that all of the information contained in your Infringement Notice is accurate, and (c) under penalty of perjury, that you are either the copyright owner or a person authorized to act on their behalf.

Send your complaint to our designated agent at:

Charles Cohn Varsity Tutors LLC
101 S. Hanley Rd, Suite 300
St. Louis, MO 63105

Or fill out the form below:

Do not fill in this field

Contact Information

* Full legal name

Company name

* Phone number

* Email address

Address

* Address1

Address2

* City

* State

* Zipcode

* Country

Complaint Details

* URL of copyrighted work (where your original material is located)

* Please describe the copyrighted work so that it may be easily identified

I am the owner, or an agent authorized to act on behalf of the owner of an exclusive right that is allegedly infringed.

I have a good faith belief that the use of the material in the manner complained of is not authorized by the copyright owner, its agent, or the law.

This notification is accurate.

I acknowledge that there may be adverse legal consequences for making false or bad faith allegations of copyright infringement by using this process.

* Signature (your digital signature is legally binding)

HIGH SCHOOL

GRADUATE SCHOOL

K-8

Search 50+ Tests

math tutoring

science tutoring

foreign languages

elementary tutoring

other

Search 350+ Subjects

SAT II Chemistry : Gases

Study concepts, example questions & explanations for SAT II Chemistry

All SAT II Chemistry Resources

Example Questions

Example Question #1 : Gas Laws

Example Question #1 : Effusion

All SAT II Chemistry Resources

Report an issue with this question

DMCA Complaint

Contact Information

Address

Complaint Details

Email address:
Your name:
Feedback: