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2 years ago

E) The number of moles of each gas produced at the electrodes is the same.

Physics

1 answer:

lisabon 2012 [21]2 years ago

3 0

Answer:

confined space

Explanation:

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Never mind i dont need help anymore

Usimov [2.4K]

Yay good for you!!!!

8 0

2 years ago

A mixture of helium and oxygen is used in scuba diving tanks to help prevent ""the bends"". 46 L helium and 12 L oxygen are comb

marin [14]

Answer

given,

For helium

Volume,V = 46 L

Pressure,P = 1 atm

Temperature,T = 25°C = 273 +25 = 298 K

R=0.0821 L . atm /mole.K

n₁ = ?

number of moles

we know

P V = n R T

$n_1 =\dfrac{46 \times 1}{0.0821\times 298}$

n₁ = 1.89 moles

For oxygen

Volume,V = 12 L

Pressure,P = 1 atm

Temperature,T = 25°C = 273 +25 = 298 K

R=0.0821 L . atm /mole.K

n₂ = ?

number of moles

we know

P V = n R T

$n_2 =\dfrac{12 \times 1}{0.0821\times 298}$

n₂ = 0.49 moles

Total volume of tank = 5 L

temperature of tank = 298 K

Partial pressure of helium

$P_1=\dfrac{n_1 R T}{V}$

$P_1=\dfrac{1.89\times 0.0821\times 298}{5}$

P₁ = 9.25 atm

Partial pressure of oxygen

$P_2=\dfrac{n_2 R T}{V}$

$P_2=\dfrac{0.49\times 0.0821\times 298}{5}$

P₂ = 2.39 atm

total pressure

P = P₁ + P₂

P = 9.25 + 2.39

P = 11.64 atm

8 0

2 years ago

What are the effects of pressure on liquids?

Vitek1552 [10]

Answer: Changes in pressure have very little effect on the volume of a liquid. Liquids are slightly incompressible because any increase in pressure can only slightly minimize the distance between the closely packed molecules. Hope this helps.

Explanation:

3 0

2 years ago

Read 2 more answers

A hydrogen atom that has lost its electron is moving east in aregion where the magnetic field is directed from south to north. I

Kitty [74]

Answer:

a. up

Explanation:

As per the rule of Fleming left hand, the three fingers should be places in a perpendicular manner i.e. mutually also.

The fore finger depicts the field direction

The middle finger depicts the velocity

And, the thumb finger depicts the force direction that experienced on that particle i.e. charged

So the electrons would be deflects to up

Hence, the correct option is a.

5 0

2 years ago

A white car is traveling at the legal speed limit v0 along an interstate highway. A blue car traveling in the same direction at

Allisa [31]

Answer:

the distance between two cars becomes $d = \frac{v_o^2}{2a_b}$ when blue car travels at legal speed

Explanation:

Initially the relative speed of the two cars is given as

$v_r = v_b - v_w$

$v_r = 2v_o - v_o = v_o$

now the relative acceleration of blue car with respect to white car

$a_r = -a_b$

now the distance between two cars till the relative speed of two cars comes to zero

$v_f^2 - v_i^2 = 2 a d$

$0 - v_o^2 = 2(-a_b)d$

$d = \frac{v_o^2}{2a_b}$

so the distance between two cars becomes $d = \frac{v_o^2}{2a_b}$ when blue car travels at legal speed

4 0

3 years ago