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wolverine [178]
2 years ago
9

Which is NOT an assumption of matter made by the kinetic molecular theory of gases?

Chemistry
1 answer:
sertanlavr [38]2 years ago
6 0

Answer:

a. the Kinetic energy of particles is determined by their mass and their velocity.

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For many purposes we can treat propane (CH) as an ideal gas at temperatures above its boiling point of - 42°C. Suppose the tempe
fredd [130]

Answer: The final pressure is 0.81 kPa

Explanation:

The combined gas equation is,

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

where,

P_1 = initial pressure of gas = 0.58 kPa

P_2 = final pressure of gas = ?

V_1 = initial volume of gas = v

V_2 = final volume of gas = v-\frac{40}{100}\times v=0.6v

T_1 = initial temperature of gas = 25^0C=(25+273)K=298K

T_2 = final temperature of gas = -22^0C=(-22+273)K=251K

Now put all the given values in the above equation, we get:

\frac{0.58\times v}{298}=\frac{P_2\times 0.6v}{251}

P_2=0.81kPa

The final pressure is 0.81 kPa

3 0
2 years ago
Metals exhibit
Deffense [45]

Answer:

B

Explanation:

This is because conductivity depends on the mobility of electrons.

3 0
3 years ago
A balloon contains 0.5 L of air at 101.5 kPa. You squeeze it to a volume of 0.25 L. What is the pressure of air inside the ballo
Igoryamba
The answer would be D. 203kPa




4 0
3 years ago
Calculate the molar mass of a gaseous substance if 0.125 g of the gas occupies 93.3 mL at STP.
just olya [345]

Answer:

30.0g/mol

Explanation:

Step 1: Given data

  • Mass of the gas: 0.125 g
  • Pressure (P): 1 atm (standard pressure)
  • Temperature (T): 273.15 K (standard temperature)
  • Volume (V): 93.3 mL

Step 2: Calculate the moles of the gas

We will use the ideal gas equation.

P \times V = n \times R \times T\\n = \frac{P \times V}{R \times T} = \frac{1atm \times 0.0933L}{\frac{0.0821atm.L}{mol.K}  \times 273.15K} = 4.16 \times 10^{-3} mol

Step 3: Calculate the molar mass of the gas

4.16 × 10⁻³ moles correspond to a mass of 0.125 g. The molar mass of the gas is:

\frac{0.125g}{4.16 \times 10^{-3} mol} =30.0g/mol

7 0
3 years ago
The job of the human heart is to circulate blood through all of the body's arteries, capillaries, and veins. The job of the huma
weeeeeb [17]
B
All cells new oxygen and blood is a way for them to get it 

3 0
3 years ago
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