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2 years ago

Which of the following is true of gas?

Chemistry

1 answer:

lesantik [10]2 years ago

8 0

Answer:

Gases mix easily because of their high kinetic energy and low inter-molecular forces.

Explanation:

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Select all that apply. Using your periodic table of the elements which chemical symbols indicate an element?

tatuchka [14]

Answer:

O, I, Ca

Explanation:

4 0

3 years ago

Ideal gas (n 2.388 moles) is heated at constant volume from T1 299.5 K to final temperature T2 369.5 K. Calculate the work and h

bija089 [108]

Answer : The work, heat during the process and the change of entropy of the gas are, 0 J, 3333.003 J and -10 J respectively.

Explanation :

(a) At constant volume condition the entropy change of the gas is:

$\Delta S=-n\times C_v\ln \frac{T_2}{T_1}$

We know that,

The relation between the $C_p\text{ and }C_v$ for an ideal gas are :

$C_p-C_v=R$

As we are given :

$C_p=28.253J/K.mole$

$28.253J/K.mole-C_v=8.314J/K.mole$

$C_v=19.939J/K.mole$

Now we have to calculate the entropy change of the gas.

$\Delta S=-n\times C_v\ln \frac{T_2}{T_1}$

$\Delta S=-2.388\times 19.939J/K.mole\ln \frac{369.5K}{299.5K}=-10J$

(b) As we know that, the work done for isochoric (constant volume) is equal to zero. $(w=-pdV)$

(C) Heat during the process will be,

$q=n\times C_v\times (T_2-T_1)=2.388mole\times 19.939J/K.mole\times (369.5-299.5)K= 3333.003J$

Therefore, the work, heat during the process and the change of entropy of the gas are, 0 J, 3333.003 J and -10 J respectively.

7 0

3 years ago

What does the constant bombardment of gas molecules against the inside walls of a container produce?

alukav5142 [94]

<span>The constant bombardment of gas molecules against the inside walls of a container produces Pressure.

Explanation:
Pressure is defined as Force per unit Area.

P = F / A

In case of gases, the gas molecules have high Kinetic Energy and they move with high velocity. This cause them to strike against the inside wall of the container. Pressure is directly proportional to temperature. Increase in temperature cause to increase the Kinetic Energy of molecules, Hence, the rate of collisions increases resulting in increasing the pressure.</span>

4 0

3 years ago

Please help(15 points)

Triss [41]

Answer: because they take a lot of tie to form

4 0

3 years ago

Read 2 more answers

Shoe companies imbed unique designs on the bottoms of the sneakers they manufacture. What is the main purpose of the designs on

Andreas93 [3]

It is to increase friction

3 0

3 years ago