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
Greeley [361]
3 years ago
6

A bicycle tire has a pressure of 6.9 × 105 Pa at a temperature of 17.5°C and contains 2.00 L of gas. show answer Incorrect Answe

r What will its pressure be, in pascals, if you let out an amount of air that has a volume of 95 cm3 at atmospheric pressure and at the temperature of the tire? Assume tire temperature and volume remain constant. P2 = 14526315.79| sin() cos() tan() cotan() asin() acos() atan() acotan() sinh() cosh() tanh() cotanh() Degrees Radians π ( ) 7 8 9 HOME E ↑^ ^↓ 4 5 6 ← / * 1 2 3 → + - 0 . END √() BACKSPACE DEL CLEAR Grade Summary Deductions 8% Potential 92% Submissions Attempts remaining: 1 (4% per attempt) detailed view 1 4% 2 4%
Physics
1 answer:
-BARSIC- [3]3 years ago
4 0

Answer:

the final pressure in pascal = 6.30*10^5 \ \ Pa

Explanation:

Given that:

initial pressure = 6.9*10^5 \ Pa

Initial Temperature = 17.5 °C  = (17.5 + 273) K = 290.5 K

Volume = 2.00 L = 2.00 × 10⁻³ m³

Initial volume of the air occupied by gas V' = 95 cm³ = 95× 10⁻⁶ m

Using the ideal gas temperature;

PV = nKT

where

K = Boltzmann constant = 1.38 × 10⁻²³

From above expression;

n = \frac{PV}{KT}

n = \frac{6.9*10^5*2.00*10^{-3}}{1.38*10^{-23}*290.5}

n = 3.44*10^{23}

The number of moles that were removed from the tire is calculated as

\Delta \ n = \frac{P_{atm}*V'}{KT}

where

P_{atm} = atmospheric pressure = 1.013*10^5

\Delta \ n = \frac{1.013*10^5*95*10^{-6}}{1.38*10^{-23}*290.5}

\Delta \ n = 2.4*10^{21}

The remaining number of moles after the release of gas is

n_2 = n- \Delta n

n_2 = 3.44*10^{23} -2.4*10^{21}

n_2 = 3.416*10^{23}

Using the expression  P_2 = \frac{n_2 KT}{V} to determine the final pressure:

P_2 = \frac{3.416*10^{23}*1.38*10^{-23}*290.5 }{2.00*10^{-3}}

P_2 = 6.30*10^5 \ \ Pa

Hence, the final pressure in pascal = 6.30*10^5 \ \ Pa

You might be interested in
How much water can be held by a cylindrical tank with a radius of 12 feet and a height of 30 feet? A. 2,260.8 cubic feet B. 13,5
MakcuM [25]

Answer:

Volume, V = 13564.8  cubic feet

Explanation:

It is given that,

Radius of the cylindrical tank, r = 12 feet

Height of the tank, h = 30 feet

We need to find the water that can be held by a cylindrical tank i.e. we need to find the volume of the tank. It is given by :

V=\pi\times r^2\times h

V=3.14\times (12)^2\times 30

V = 13564.8  cubic feet

So, the water held by the tank is 13564.8  cubic feet. Hence, this is the required solution.

6 0
3 years ago
Jeff is a landscaping contractor and lifts a rock weighing 600 pounds by wedging a board under the rock. Jeff weighs 150 pounds
jonny [76]

Answer: 4

The mechanical advantage is the ratio of the force exerted  by the object to the force applied to do work on it.

Here, Jeff tried to lift a rock weighing 600 pounds by wedging board under the rock. Jeff who weighs 150 pounds uses all his weight to exert force on lever and lift rock.

Mechanical advantage, M.A.=\frac{weight\hspace{1mm}of\hspace{1 mm}rock}{weight\hspace{1mm}of\hspace{1 mm}Jeff}=\frac{600 pounds}{150 pounds}=4.

Therefore, the mechanical advantage that lever provided to Jeff in lifting rock is 4.

6 0
3 years ago
Read 2 more answers
The temperature of a body of water influences _____
Maslowich
The temperature of the air above it
5 0
3 years ago
Read 2 more answers
many lichens are composed of fungi and algae. The fungi get sugars from the algae, and the algae get water, minerals, and protei
Tcecarenko [31]

Answer:

The answer is mutualism because they are both on the receiving and giving ends

6 0
3 years ago
A 6.2 kg object moving in the +x direction at 5.3 m/s collides head-on with an 7.8 kg object moving in the −x direction at 2.5 m
Crank

Answer:

10ms kg 88.2

Explanation:

Toook test

8 0
3 years ago
Other questions:
  • Give an explaination to the following formula p=I^2R
    11·1 answer
  • Which of these is a contact force?
    6·2 answers
  • An auto, starting from rest, undergoes constant acceleration and covers a distance of 1200 meters. The final speed of the auto i
    15·1 answer
  • Which of the following is not a manmade cause of global warming?
    5·2 answers
  • A delivery truck leaves a warehouse and travels 2.60 km north. The truck makes a left turn and travels 1.25 km west before makin
    6·1 answer
  • What happens to the resistance of a wire as its length increases? A. The resistance decreases. B. The resistance is not affected
    6·1 answer
  • PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer these correctly!!!! (47pts)
    8·2 answers
  • Understands how formulas are used​
    14·2 answers
  • Blood is tissue .how?​
    12·2 answers
  • 1 Table Exercise the object released from atop of building house of heigh 10m . Calculaie a final velocity if it time is 4s​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!