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3 years ago

The free energy of an electrochemical cell is given by the equation:

Chemistry

1 answer:

Nuetrik [128]3 years ago

7 0

To obtain the number of moles of electrons, we need to multiply both sides by 1/FE.

<h3>What is electrochemical cell?</h3>

The electrochemical cell is a cell in which energy is produced by chemical reactions which are spontaneous. We can obtain the free energy of an electrochemical cell using the equation; ΔG=-nFE

To make n the subject of the formula, we need to multiply both sides by 1/FE as follows;

$\frac{dG}{FE} = n$ .

Learn more about electrochemical cell: brainly.com/question/4592165

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How much heat must be removed from 25.0g of steam at 118.0C in order to form ice at 15C

NemiM [27]

Answer:

-10778.95 J heat must be removed in order to form the ice at 15 °C.

Explanation:

Given data:

mass of steam = 25 g

Initial temperature = 118 °C

Final temperature = 15 °C

Heat released = ?

Solution:

Formula:

q = m . c . ΔT

we know that specific heat of water is 4.186 J/g.°C

ΔT = final temperature - initial temperature

ΔT = 15 °C - 118 °C

ΔT = -103 °C

now we will put the values in formula

q = m . c . ΔT

q = 25 g × 4.186 J/g.°C × -103 °C

q = -10778.95 J

so, -10778.95 J heat must be removed in order to form the ice at 15 °C.

3 0

3 years ago

Which of the following is not equal to 325 cg?

Andrei [34K]

The answer is 3.25 x 10 -3 kg is not equal to 325 cg

4 0

3 years ago

Read 2 more answers

A student jumps of a sled toward the west after it stops at the bottom of an icy hill. Based on the law of action-reaction, in w

Delicious77 [7]

Answer:

East

Explanation:

Given Newton's third law of motion; "Action and reaction are equal and opposite", when a student jumps off a sled toward the west after it stops at the bottom of an icy hill, the sled will move in the East direction.

This is because, the force exerted on the sled is a reaction force and is opposite in direction to the force that thrusts the boy westward though equal in magnitude with the former.

3 0

3 years ago

How many moles of hcl are required to neutralize aqueous solutions of these bases? 0.03 mol koh?

oksano4ka [1.4K]

The moles of HCl are required to neutralized aqueous solution of the 0.03 KoH

KOH + HCl = KCl + H2O

by use mole ratio between KOH to HCl which is 1:1 the moles Of HCl is also 0.03 moles

5 0

3 years ago

Give the formula for the alkane containing 500 carbons.

Fiesta28 [93]

Answer:

1002

Explanation:

$C_{2n}$ $H_{2n+2}$

500 multiply by 2 add 2

5 0

3 years ago