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2 years ago

7

Does VENUS have a CRUST and a TILT?

1 answer:

Marrrta [24]2 years ago

7 0

Answer:

Venus has a very small axial tilt -- 3 degrees versus Earth's 23.5 degrees. Its dense, acidic atmosphere produces a runaway greenhouse effect that keeps the surface at around 865 degrees F year-round, which is hot enough to melt lead.When the solar system settled into its current layout about 4.5 billion years ago, Venus formed when gravity pulled swirling gas and dust together to form the second planet from the Sun. Like its fellow terrestrial planets, Venus has a central core, a rocky mantle and a solid crust.

Explanation:

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topjm [15]

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3 years ago

What is the difference between endothermic reactions and exothermic reactions? (Please describe both types of chemical reactions

ryzh [129]

Answer:

Explanation:

Endothermic reactions absorb energy from the surrounding, but exothermic reactions release energy to the surrounding.

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2 years ago

What is the value of the equilibrium constant at 25 oC for the reaction between the pair: I2(s) and Br-(aq) Give your answer usi

insens350 [35]

Explanation:

Formula to calculate standard electrode potential is as follows.

$E^{o}_{cell} = E^{0}_{cathode} - E^{0}_{anode}$

= 0.535 - 1.065

= - 0.53 V

Also, it is known that relation between $E^{o}_{cell}$ and K is as follows.

$E^{o}_{cell} = \frac{RT}{nF} \times ln K$

ln K = $\frac{nFE^{0}_{cell}}{RT}$

Substituting the given values into the above formula as follows.

ln K = $\frac{nFE^{0}_{cell}}{RT}$

= $\frac{2 \times 96485 C mol^{-1} \times -0.53 V}{8.314 l atm/mol K \times 298 K} \times \frac{1 J}{1 V C}$

ln K = -41.28

K = $e^{-41.28}$

= $1 \times 10^{-18}$

Thus, we can conclude that the value of the equilibrium constant for the given reaction is $1 \times 10^{-18}$ .

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3 years ago

If z = 4.0 and y = 9.6, what is the value of x?

krok68 [10]

Answer:

The value of x will be "1.4".

Explanation:

The given values are:

y = 9.6

z = 4.0

As we know,

The relation between x, y and z is:

⇒ $z = \frac{y}{x}$

and,

⇒ $x=\frac{y}{z}$

On substituting the given values, we get

⇒ $=\frac{5.6}{4.0}$

⇒ $=1.4$

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2 years ago

vivado [14]

Answer:

D. All of these.

Explanation:

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2 years ago