1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fgiga [73]
3 years ago
7

A sample of gas has a pressure of 21 Pa at 30degF. What would its pressure be at 80degF? The volume of the gas remains constant.

Mathematics
1 answer:
lara [203]3 years ago
6 0

Answer:

23 Pa

Step-by-step explanation:

According to ideal gas law, PV = nRT.  If V is constant, then:

P/T = P/T

Remember that P and T are absolute.  So °F must be converted to either Rankine or Kelvin.

To convert °F to Rankine, add 459.67.

30°F + 459.67 = 489.67 R

80°F + 459.67 = 539.67 R

21 Pa / 489.67 R = P / 539.67 R

P = 23.1 Pa

Rounded to two significant figures, the pressure is 23 Pa.

You might be interested in
Sam uses 2/3 cup of sugar to make cookies. How many cups will Sam use to make five batches. Write your answer in two ways. Impro
frosja888 [35]

Answer:

Improper fraction = 10/3 cups

Mixed fraction = 3 1/3 cups

Step-by-step explanation:

Given;

Sam uses 2/3 cup of sugar to make cookies

Rate = 2/3 cup per batch

To make 5 batches, he would need;

Amount = number of batches × rate per batch

Amount = 5 batches × 2/3 cups per batch

Amount of sugar he would need = 10/3 or 3 1/3 cups

4 0
3 years ago
Plz explain and I'll give brainly!!!
miss Akunina [59]

Answer:

(2,21)

Step-by-step explanation:

y = 10.5x

plug 2 for x  in the equation

y = 10.5(2)

then multiply 2 by 10.5

y=21

7 0
3 years ago
What is the measure of tje fourth angle of the quadrilateral
grin007 [14]
37 would be the answer.....
5 0
3 years ago
Guys.....My Bf just broke up with me I will give away 100 point brainlist if you help me calm down.
Assoli18 [71]

Answer:

Ok for one im sooo sooorrry i know how it feels but guess what that guy is probably a loser you should tell yourself your better than him and you deserve better. Some People are just du.mb but u can do better.

7 0
3 years ago
Look at these numbers. 0.3,
timama [110]
0.3.......the 3 is in the tenths place 
0.103....the 3 is in the thousandths place
0.13.....the 3 is in the hundredths place

0.3 is ur answer

8 0
3 years ago
Read 2 more answers
Other questions:
  • Use substitution to solve the system of equation. 2x+2y=8 x+y=-2
    6·1 answer
  • A weight attached to a spring is at its lowest point, 9 inches below equilibrium, at time t = 0 seconds. When the weight it rele
    8·2 answers
  • What is m∠A?<br><br> 45°<br> 103°<br> 77°<br> 35°
    11·1 answer
  • I don't yhe number line.​
    13·2 answers
  • F(x)=2(x+3)^2-7<br> Write in standard form
    15·1 answer
  • Can someone please help me, everyone is taking my points :(
    12·1 answer
  • Hi pls help.you do not have to do all 3. just either one will be ok pls explain as well:) thank you
    6·1 answer
  • Please Help!<br><br> if these two shapes are similar, what is the measure of missing length q?
    6·2 answers
  • Can someone please give a link to zoom
    13·2 answers
  • Christian reads 1/4 of a book every 2/3 weeks how many books does Christain read per week​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!