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3 years ago

How do you do 35 and 36?

Chemistry

1 answer:

d1i1m1o1n [39]3 years ago

7 0

Answer:

Q35 (C); Q36 (B)

Explanation:

Li₃N + 2H₂ ⇌ 2LiNH₂ + 2LiH; ΔH° = -192 kJ·mol⁻¹

Q35. Reaction rate

The reaction is slow below because it has a high activation energy.

ΔH, ΔS, and ΔG determine the position of equilibrium and the spontaneity of the reaction, not its rate.

Q36. Maximizing amount of H₂

The reaction is exothermic. According to Le Châtelier's Principle, increasing the temperature will shift the position of equilibrium to the left and increase the amount of hydrogen.

Increasing the pressure will shift the position of equilibrium to the side with fewer moles of hydrogen.

Decreasing the pressure will shift the position of equilibrium to the side with more moles of hydrogen.

The correct answer is (B) increasing the temperature and decreasing the pressure .

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What is the purpose of the catalyst?

Hitman42 [59]

Its C

a catalyst speeds up a reaction by offering the reaction an alternative reaction pathway with a lower activation energy

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5 0

3 years ago

Given the reaction:

WARRIOR [948]

Answer:

4 moles

Explanation:

From the equation 1 mole of C6H1206 produces 6 moles of CO2.

Therefore the answer is 24/6 = 4 moles of C6H1206.

6 0

3 years ago

How much heat do you need to raise the temperature of 100g of aluminum from 30 C to 150 C

SVEN [57.7K]

Answer:

Q = 10.8 KJ

Explanation:

Given data:

Mass of Al= 100g

Initial temperature = 30°C

Final temperature = 150°C

Heat required = ?

Solution:

Specific heat of Al = 0.90 j/g.°C

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 150°C - 30°C

ΔT = 120°C

Q = 100g×0.90 J/g.°C× 120°C

Q = 10800 J (10800j×1KJ/1000 j)

Q = 10.8 KJ

4 0

3 years ago

Read 2 more answers

Regular table salt is sodium chloride, NaCl. It is a bonding of an Na+ ion and a Cl- ion. Which of these ions is bigger?

fenix001 [56]

Answer:

in the periodic table we can see that the ions of Cl is greater than the ions in Na

3 0

3 years ago

How much would the temperature of 275 g of water increase if 36.5 kj of heat were added?

Andrew [12]

<u>Answer:</u> The temperature increase will be 31.70°C.

<u>Explanation:</u>

To calculate the increase in the temperature of the system, we use the equation:

$q=mc\Delta T$

where,

q = Heat absorbed = 36.5 kJ = 36500J

m = Mass of water = 275 g

c = Specific heat capacity of water = $4.186J/g^oC$

$\Delta T$ = change in temperature = ? °C

Putting values in above equation, we get:

$36500J=275\times 4.186J/g^oC\times \Delta T\\\\\Delta T=31.70^oC$

Hence, the temperature increase will be 31.70°C.

8 0

3 years ago

Read 2 more answers