I would suppose that the water, gift warmer than the ice, will speed the melting of the ice. However, ns would likewise expect the draining the water would remove allow much more air to get in the system and also heat the ice cream faster. Which explanation is correct?
Related question: if the container is a cooler to fill with heat beverages, will the beverages cool much faster in a wet or dried ice-filled cooler?
boost this inquiry
edited Jul 29 "14 in ~ 18:44
inquiry Jul 29 "14 in ~ 18:34
36344 silver badges1212 bronze title
include a comment |
2 answers 2
active oldest Votes
Assuming the water and air are the exact same temperature (and that the wait is mainly stationary) then the ice will certainly melt faster in the water. This is due to water having actually a greater thermal conductivity and also heat capacity. In fact, this is straightforward to test: ar a cocktail stick v an ice cube and also lay the on peak of a glass filled ideal to the optimal with (room temperature) water. The submerged fifty percent will melt faster than that on top.
You are watching: Does an icecube melt faster in air or water
Regarding the second question: A warm object will cool much faster in icy water than in just ice because that the very same reason above but likewise because of raised surface area contact. However, icy water will certainly be warmer than simply ice. So the item will possibly be able to accomplish a lower temperature in simply ice (slow and also steady wins the race).
enhance this price
edited Jul 29 "14 at 19:23
answer Jul 29 "14 at 18:45
40122 silver- badges1616 bronze title
add a comment |
The ice cream in the drum will certainly melt quicker if the water is not draining out.
This is because any kind of air room between the drum and the ice cream slug will be a good insulator.
As stated in a comment every the water will stay at 0 °C until all the ice is melted. Warmth from the exterior will cause convection currents in the water and transfer heat faster to the slug and melt more. Keeping the water in will permit for a preferably of drum surface in direct contact with the inner cold water and maximise the exterior heat transfer.
There is an included bonus if the north is full, the ice cream slug will soon float complimentary and climb up to touch the lid and gain further outside surface area to help with melt at the lower mass ice temperature witch will have a slightly far better thermal gradient and so be faster.
If the air is cold yet the floor is hot then heat is mostly transferred v the bottom climate it will be much faster to drainpipe the water.
In a cooler you desire the best of cold heat mass yet the minimum of warm transfer. As the sides room an insulator the thermal mass is one advantage. If the political parties were no an insulator favor a bathtub or a drum then draining the water away from the warm bathtub walls is advisable but will only help while the ice has not melted come conform to the tub shape. The difficulty is that after the ice has actually melted you no longer have actually the little benefit the the cold water (that girlfriend drained). This way that you should insulate to slow-moving the heat flow and gain the services of the ice and also the water. Making use of a foam yoga mat within or external the bath tub will improve things a many in conjunction through some lumber under it.
See more: Ascending And Descending Intervals Are Calculated, Intervals Assessment
Keep in mind the melting ice cream is MUCH better at maintaining drinks at 0 °C than water in ~ 0 °C. Additionally ice water slurry is best for quick cooling that a heat beverage thrown into a bathtub or cooler as the water absorbs the heat much faster due to better surface contact.