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const2013 [10]
3 years ago
10

In a heating curve, when is the temperature constant? need answers!

Chemistry
2 answers:
Varvara68 [4.7K]3 years ago
3 0
During a phase change
Bingel [31]3 years ago
3 0

<u>Answer: </u>The correct answer is Option 1.

<u>Explanation:</u>

For the given options:

<u>Option 1:</u> During a phase change

Whenever phase change occurs, the temperature remains constant because the heat is used to overcome the intermolecular forces between the particles.

<u>Option 2:</u> During a pressure change

As we know pressure is directly related to the temperature. So, if the pressure is increased, the temperature will also increase and vice-versa.

<u>Option 3:</u> During a change in kinetic energy

Kinetic energy is directly related to the temperature of a substance. So, if the kinetic energy is increased, the temperature will also increase and vice-versa.

<u>Option 4:</u> During a change in molecular velocity

Molecular velocity is directly related to the temperature of a substance. So, if the molecular velocity is increased, the temperature will also increase and vice-versa.

Hence, the correct answer is Option 1.

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Answer:

a

Explanation:

it is an electrolyte because of its strong polar chemical bond

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2 years ago
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How many moles are in 48.0g of H2O2?
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Answer:

1.41 moles H2O2(with sig figs)

Explanation:

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3 years ago
8. which change in state is associated with the heat of vaporization,
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The answer is 2, liquid to vapor because vaporization is the process of liquids to vapors.
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NASA communicates with the Space Shuttle and International Space Station using Ku-band microwave radio. Suppose NASA transmits a
Margarita [4]

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λ = 0.0167 m = 16.7 mm

Explanation:

The wavelength of these radio waves can be found out by using the formula for the speed of radio waves:

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f = frequency of radio waves = 18 GHz = 18 x 10⁹ Hz

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4 0
2 years ago
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tensa zangetsu [6.8K]

Answer:

90.99 or 91.0

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3 years ago
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