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
Ludmilka [50]
2 years ago
8

What is the final pressure of a system (atm) that has the volume increased from 0.75 l to 1.1 l with an initial pressure of 1.25

atm? 1.1 0.85 1.8 1.2 none of the above?
Chemistry
1 answer:
lana66690 [7]2 years ago
3 0
Boyle's law states that pressure is inversely proportional to volume of gas at constant temperature 
PV = k
where P - pressure , V - volume and k - constant 
P1V1 = P2V2
where parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation 
substituting these values in the equation 
1.25 atm x 0.75 L = P x 1.1 L
P = 0.85 atm 
final pressure is B) 0.85 atm 
You might be interested in
12. How are secondary sources of energy different from other energy resources?<br> (Plz help)
Pani-rosa [81]

Answer:

Explanation:Energy is the capacity of a physical system to perform work. Energy exists in several forms such as heat , kinetic or mechanical energy, light, potential energy , electrical, or other forms. Energy is the ability to do work. Energy sources could be classified as Renewable and Non-renewable.

7 0
3 years ago
Choose all the answers that apply. Plasma is made of _____.
andreev551 [17]
<span>'Plasma itself is made up of 91.5% water. It acts as a solvent for important proteins, nutrients, electrolytes, gases, and other substances essential to life.'

Source: </span><span>https://study.com/academy/lesson/what-is-blood-plasma-function-components.html

Hope this helps! :)</span>
5 0
3 years ago
The pressure exerted by 1.5 mol of gas in a 13 L flask at 22 °C is ____ kPa
sukhopar [10]

Answer:

282.7KPa

Explanation:

Step 1:

Data obtained from the question.

Number of mole of (n) = 1.5 mole

Volume (V) = 13L

Temperature (T) = 22°C = 22 + 273°C = 295K

Pressure (P) =..?

Gas constant (R) = 0.082atm.L/Kmol

Step 2:

Determination of the pressure exerted by the gas.

This can be obtained by using the ideal gas equation as follow:

PV = nRT

P = nRT /V

P = 1.5 x 0.082 x 295 / 13

P = 2.79atm.

Step 3:

Conversion of 2.79atm to KPa.

This is illustrated below:

1 atm = 101.325KPa

Therefore, 2.79atm = 2.79 x 101.325 = 282.7KPa

Therefore, the pressure exerted by the gas in KPa is 282.7KPa

8 0
2 years ago
Metamorphic rocks are formed by
marin [14]

Answer:

Heat and pressure.

Explanation:

Hope this helps!

7 0
3 years ago
It takes 412. KJ/mol to break a carbon-hydrogen single bond. Calculate the maximum wavelength of light for which a carbon-hydrog
olga_2 [115]

Answer:

The maximum wavelength of light for which a carbon-hydrogen single bond could be broken by absorbing a single photon = 290 nm

Explanation:

                  So to break a single C - H bond require = \frac{412}{6.023 X (10)^{23} }

                           = 6.84 x 10⁻¹⁹ joule

Find the wavelength of a photon we use E = hν

                                                             ⇒    E = \frac{hc}{Wavelength}

                   Where h = Planck's constant = 6.626 x 10⁻³⁴ J.K⁻¹.Mole⁻¹

                               c = speed of light = 3 x 10⁸ m/sec

                                                           Wavelength = \frac{6.626 X 10^{-34} X 3 X 10^{8} }{6.84 X10^{-19}  }

                                                                                 = 2.9 x 10⁻⁷ m

                                                                                 = 290 nm

                                           ∵ 1 nm = 10⁻⁹ m

                         

7 0
3 years ago
Other questions:
  • Many systems and technologies have been designed to communicate over long distances. They all send information that has been enc
    11·2 answers
  • How do you determine the environmental impact of human activities?
    5·1 answer
  • How many moles of carbon dioxide gas, co2, are there in 2.94 l of this gas at stp
    13·2 answers
  • Plz help! This question is due in 10 mins!
    5·1 answer
  • I need help answering 14 and 15
    13·1 answer
  • Which term is used to describe a molecule that has a partial positive charge at one end and a partial negative charge at the oth
    7·1 answer
  • What is the kinetic energy of the ball as it is half way through the fall?
    11·1 answer
  • HELPPPPPP! PLEASE ASAPPPPPPPPPPPP!?
    6·1 answer
  • Which of these models shows the position of the sun moon and Earth that will have the LARGEST effect on the tides? _________
    10·2 answers
  • A sample of an unknown gas occupies 5.51 L at 1.31 atm. What pressure would thisgas exert in a 0.520 L container if the temperat
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!