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
amm1812
4 years ago
7

A sample of gas has a volume of 100.0 L at 135°C. Assuming the pressure remains constant, what is the volume of the gas if its t

emperature decreases to 72.0 °C?
Chemistry
1 answer:
lina2011 [118]4 years ago
8 0

Answer: 84.56L

Explanation:

Initial volume of gas V1 = 100L

Initial temperature T1 = 135°C

Convert temperature in Celsius to Kelvin

( 135°C + 273 = 408K)

Final temperature T2 = 72°C

( 72°C + 273= 345K)

Final volume V2 = ?

According to Charle's law, the volume of a fixed mass of a gas is directly proportional to the temperature.

Mathematically, Charles' Law is expressed as: V1/T1 = V2/T2

100L/408K = V2/345K

To get the value of V2, cross multiply

100L x 345K = V2 x 408K

34500 = V2 x 408K

V2.= 34500/408

V2 = 84.56L

Thus, the volume of the gas becomes 84.56 liters

You might be interested in
What happens when a glass of water is set in the sun until the water
zalisa [80]

Answer:

D is the answer

Explanation:

6 0
3 years ago
The industrial revolution contributed to the pollution we have today
Sergio [31]
I think the answer might be false. I hope this helps!
4 0
4 years ago
_ Na3PO4 + _ HCl NaCl + _ H3PO4
tatiyna

Answer:

Na₃PO₄ + 3HCl —> 3NaCl + H₃PO₄

The coefficients are: 1, 3, 3, 1

Explanation:

_Na₃PO₄ + __HCl —> __NaCl + _H₃PO₄

The above equation can be balance as follow:

Na₃PO₄ + HCl —> NaCl + H₃PO₄

There are 3 atoms of Na on the left side and 1 atom on the right side. It can be balance by writing 3 before NaCl as shown below:

Na₃PO₄ + HCl —> 3NaCl + H₃PO₄

There are 3 atoms of Cl on the right side and 1 atom on the left side. It can be balance by writing 3 before HCl as shown below:

Na₃PO₄ + 3HCl —> 3NaCl + H₃PO₄

Now, the equation is balanced.

The coefficients are: 1, 3, 3, 1

8 0
3 years ago
The dissociation of calcium carbonate has an equilibrium constant of Kp= 1.20 at 800°C. CaCO3(s) ⇋ CaO(s) + CO2(g)
Fed [463]

Explanation:

(a)   Formula that shows relation between K_{c} and K_{p} is as follows.

                 K_c = K_p \times (RT)^{-\Delta n}

Here, \Delta n = 1

Putting the given values into the above formula as follows.

        K_c = K_p \times (RT)^{-\Delta n}

                  = 1.20 \times (RT)^{-1}

                  = \frac{1.20}{0.0820 \times 1073}

                  = 0.01316

(b) As the given reaction equation is as follows.

               CaCO_{3}(s) \rightleftharpoons CaO(s) + CO_{2}(g)

As there is only one gas so ,

                p[CO_{2}] = K_{p} = 1.20

Therefore, pressure of CO_{2} in the container is 1.20.

(c)   Now, expression for K_{c} for the given reaction equation is as follows.  

             K_{c} = \frac{[CaO][CO_{2}]}{[CaCO_{3}]}

                        = \frac{x \times x}{(a - x)}

                        = \frac{x^{2}}{(a - x)}[/tex]

where,    a = initial conc. of CaCO_{3}

                  = \frac{22.5}{100} \times 9.56

                  = 0.023 M

          0.0131 = \frac{x^{2}}{0.023 - x}

                  x = 0.017

Therefore, calculate the percentage of calcium carbonate remained as follows.

       % of CaCO_{3} remained = (\frac{0.017}{0.023}) \times 100

                                  = 75.46%

Thus, the percentage of calcium carbonate remained is 75.46%.

3 0
4 years ago
Mencionar 5 objetos o sustancias químicas que tengan Carbono.
RoseWind [281]

Answer:    

agua

madera

plastico

ropa

bebida carbonatada

cáscara

Explanation:

6 0
3 years ago
Other questions:
  • Describe the properties of Cooper
    14·2 answers
  • At what temperature,in degrees°C, would 12.6g of HCN occupy 13.3L if the pressure is 0.97 atm​
    7·2 answers
  • An experiment in a general chemistry laboratory calls for a 2.00 M solution of HCL. How many mL of 11.9 M HCL would be required
    10·1 answer
  • How much mass does 0.1 mole of neon contain?<br> A) 26.018 g<br> B) 2.02 g<br> C) 2.0 g<br> D) 2 g
    10·2 answers
  • Refer to the picture given below to give the answer. Don’t forget to use the correct amount of sig figs.
    7·1 answer
  • What are inner transition metals composed of?
    14·2 answers
  • PLZ HURRY! Will be marked brainly
    5·1 answer
  • An object has a density of 0.73 g/cm3. Will the object sink or float in water?
    10·1 answer
  • A mixture of calcium chloride and calcium trioxocarbonate(IV) In water can be separated by which separating technique​
    8·1 answer
  • A man threw a Frisbee which weighs 3 kg with a velocity of 5 m/s. What is the KE in the system? *
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!