which one is correct
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b. ice melts. exothermic reaction
explain-
the ice will be usually found in the solid state, and when it starts to melt, slowly it turns into the liquid state. At that point, heat energy will be released into the air completely.
explain-
the ice will be usually found in the solid state, and when it starts to melt, slowly it turns into the liquid state. At that point, heat energy will be released into the air completely.
birajpandey182:
Sorry but ans is when water vapour is condensed
no, you can google it
when ice melt there is EXOTHERMIC REACTION
Ice needs to absord energy to get converted into water. It's endothermic
confidence is good, but be 100% sure that you are correct
you r right, sorry
Answered by
1
5. Answer: D
Heat is liberated when water vapour condenses.
Water vapour has higher energy than water. When vapour is converted to water, the excess energy goes to the surrounding.
___________________
1. Time temperature graph has higher slope at the beginning and the slope decreases gradually.
It means that the rate of cooling is higher initially, when the temperature difference of liquid and surrounding is high.
the rate of cooling is slower later when the temperature difference of liquid and surrounding is low.
That means greater the temperature difference, higher the rate of cooling
Heat is liberated when water vapour condenses.
Water vapour has higher energy than water. When vapour is converted to water, the excess energy goes to the surrounding.
___________________
1. Time temperature graph has higher slope at the beginning and the slope decreases gradually.
It means that the rate of cooling is higher initially, when the temperature difference of liquid and surrounding is high.
the rate of cooling is slower later when the temperature difference of liquid and surrounding is low.
That means greater the temperature difference, higher the rate of cooling
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