True or false the melting of ice cubes is a exothermic reaction
1 answer:
<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2>
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>You might be interested in
Answer:
a.
b. must be the minimum magnitude of deceleration to avoid hitting the leading car before stopping
c. is the time taken to stop after braking
Explanation:
Given:
- speed of leading car,
- speed of lagging car,
- distance between the cars,
- deceleration of the leading car after braking,
a.
Time taken by the car to stop:
where:
, final velocity after braking
time taken
b.
using the eq. of motion for the given condition:
where:
final velocity of the chasing car after braking = 0
acceleration of the chasing car after braking
must be the minimum magnitude of deceleration to avoid hitting the leading car before stopping
c.
time taken by the chasing car to stop:
is the time taken to stop after braking