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svlad2 [7]
2 years ago
14

True or false the melting of ice cubes is a exothermic reaction

Physics
1 answer:
DIA [1.3K]2 years ago
3 0
<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2>

\huge\boxed{False}

<h2>_____________________________________</h2><h3>ENDOTHERMIC REACTIONS:</h3>

Endothermic Reaction are those reactions in which the reactants absorb the energy from their surrounding and forms the product.

<h2>_____________________________________</h2><h3>How to know endothermic reaction?</h3>

Those changes in which a substance goes from More-ordered state to less-oredered state are endothermic. Where they change from less ordered to more ordered is exothermic.

More ordered means that the movement of vibration of the particles of the substance is less and the are more close to each other. More to less ordered state is given as,

Solid>Liquid>Gas.

<h2>_____________________________________</h2><h2>Question:</h2>

In the question it asks about the melting of the ice cube. Ice cube is a solid, and when it will melt, it will change into the liquid water. As we know that, Solid is more ordered and Liquid is less ordered, and The change from more-ordered to less-ordered is endothermic thus the answer is ENDOTHERMIC.

<h2>_____________________________________</h2><h2>Best Regards,</h2><h2>'Borz'</h2><h2></h2>

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Describe what it means if a chemical or physical property is periodic
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The distance a spring stretches varies directly as the amount of weight that is hanging on it. A weight of 2.5 pounds stretches
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y = 18, x = 2.5

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5 0
3 years ago
Read 2 more answers
Does anyone know what the answers are?
baherus [9]

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4 0
3 years ago
If we double the frequency of a system undergoing simple harmonic motion, which of the following statements about that system ar
AnnyKZ [126]

Answer:

a. The angular frequency is doubled.

e. The period is reduced to one-half of what it was.

Explanation:

Angular frequency is given as;

ω = 2πf

\frac{\omega _1}{f_1} = \frac{\omega _2}{f_2}

when the frequency is doubled

\frac{\omega _1}{f_1} = \frac{\omega _2}{(2f_1)} \\\\\omega _1 = \frac{\omega _2}{2}\\\\\omega _2 = 2\omega _1

Thus, the angular frequency will be doubled.

Amplitude in simple harmonic motion is the maximum displacement.

Frequency is related to period in simple harmonic motion as given in the equation below;

f = \frac{1}{T} \\\\f_1T_1= f_2T_2\\\\T_2 = \frac{f_1T_1}{f_2}

when the frequency is doubled;

T_2 = \frac{f_1T_1}{2f_1} \\\\T_2 = \frac{T_1}{2}

Thus, the period will be reduced to one-half of what it was.

5 0
3 years ago
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