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2 years ago

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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skater spins over a point at a speed of 3.0 rotations per second then the momentum of inertia is 0.60 kg.M2, what is its angular

laiz [17]

Answer:

$L=11.3\ kg-m^2/s$

Explanation:

Given that,

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We need to find the angular momentum of the skater. The formula for the angular momentum of the skater is given by :

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$L=0.6\times 18.84\\\\L=11.3\ kg-m^2/s$

So, its angular momentum is equal to $11.3\ kg-m^2/s$ .

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scoray [572]

The best and most correct answer among the choices provided by your question is the second choice.

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I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

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ale4655 [162]

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3 years ago

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Setler79 [48]

Answer:

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Explanation:

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