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Qmechanic
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a A bit funny practical task: frozen dumplings in boiled water, how temperature changes and when will boil again?

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renathy
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a bit funny practical task: frozen dumplings in boiled water, how temperature changes and when will boil again?

This is my question:

  1. I take a pot with boiling water (temperature of water is equal to boiling temperature), water was boiled in tea can
  2. I take frozen dumplings
  3. Now I put dumplings into the pot
  4. Only now I put this pot on the stove
  5. We know that dumplings would be ready in 7 minutes (so they would start floating up)

My question is - whether in 10 seconds after putting dumplings into the pot, water would be still boiling (taking into account that we put pot on stove again)?

  • So, I think that just after putting frozen dumplings into the pot, probably water won't be boiling any more (water temperature would decrease), or
  • I also assume that water temperature would drop from 100 to maybe it will still boil80? DoesIs it depand on amountlogical? Or 80 is incorrect assumption?
  • Then when put on the stove, water would start boiling again at some point
  • But is 10 seconds enough for water to boil again?
  • Does it depend on amount of water/dumplings or not?
  • How to calculate (or at least understand approximately) how would water temperature change in 1 sec after we put dumplings into the water? And how it will change when put on the stove back?

I do not need some solution, but just help with correct reasoning, how to think correctly and what are processes that should be taken into account? I am also not given any precise values (like amount of water or dumplings). I want to understand different scenarios if there are possible multiple solutions.

frozen dumplings in boiled water, how temperature changes?

This is my question:

  1. I take a pot with boiling water (temperature of water is equal to boiling temperature), water was boiled in tea can
  2. I take frozen dumplings
  3. Now I put dumplings into the pot
  4. Only now I put this pot on the stove

My question is - whether in 10 seconds after putting dumplings into the pot, water would be still boiling (taking into account that we put pot on stove again)?

  • So, I think that just after putting frozen dumplings into the pot, probably water won't be boiling any more (water temperature would decrease), or maybe it will still boil? Does it depand on amount?
  • Then when put on the stove, water would start boiling again at some point
  • But is 10 seconds enough for water to boil again?
  • Does it depend on amount of water/dumplings or not?
  • How to calculate (or at least understand approximately) how would water temperature change in 1 sec after we put dumplings into the water? And how it will change when put on the stove back?

I do not need some solution, but just help with correct reasoning, how to think correctly and what are processes that should be taken into account?

a bit funny practical task: frozen dumplings in boiled water, how temperature changes and when will boil again?

This is my question:

  1. I take a pot with boiling water (temperature of water is equal to boiling temperature), water was boiled in tea can
  2. I take frozen dumplings
  3. Now I put dumplings into the pot
  4. Only now I put this pot on the stove
  5. We know that dumplings would be ready in 7 minutes (so they would start floating up)

My question is - whether in 10 seconds after putting dumplings into the pot, water would be still boiling (taking into account that we put pot on stove again)?

  • So, I think that just after putting frozen dumplings into the pot, probably water won't be boiling any more (water temperature would decrease)
  • I also assume that water temperature would drop from 100 to maybe 80? Is it logical? Or 80 is incorrect assumption?
  • Then when put on the stove, water would start boiling again at some point
  • But is 10 seconds enough for water to boil again?
  • Does it depend on amount of water/dumplings or not?
  • How to calculate (or at least understand approximately) how would water temperature change in 1 sec after we put dumplings into the water? And how it will change when put on the stove back?

I do not need some solution, but just help with correct reasoning, how to think correctly and what are processes that should be taken into account? I am also not given any precise values (like amount of water or dumplings). I want to understand different scenarios if there are possible multiple solutions.

Source Link
renathy
  • 153
  • 5

frozen dumplings in boiled water, how temperature changes?

This is my question:

  1. I take a pot with boiling water (temperature of water is equal to boiling temperature), water was boiled in tea can
  2. I take frozen dumplings
  3. Now I put dumplings into the pot
  4. Only now I put this pot on the stove

My question is - whether in 10 seconds after putting dumplings into the pot, water would be still boiling (taking into account that we put pot on stove again)?

  • So, I think that just after putting frozen dumplings into the pot, probably water won't be boiling any more (water temperature would decrease), or maybe it will still boil? Does it depand on amount?
  • Then when put on the stove, water would start boiling again at some point
  • But is 10 seconds enough for water to boil again?
  • Does it depend on amount of water/dumplings or not?
  • How to calculate (or at least understand approximately) how would water temperature change in 1 sec after we put dumplings into the water? And how it will change when put on the stove back?

I do not need some solution, but just help with correct reasoning, how to think correctly and what are processes that should be taken into account?