Hey, that L is not latent heat in equation but length.goonking said:
oh, sorry! good catchRaghav Gupta said:
There is another equation for heat transfer what is that?goonking said:
Q = L mRaghav Gupta said:
How to bring time term here which is 3 hrs?goonking said:
i think the answer we get, if we did all the algebra, is the amount of heat per seconds.Raghav Gupta said:
Q = (0.035) (0.02m x 0.4m) (10800 seconds) (29 C) / (0.4m) = 219.24 joulesRaghav Gupta said:
Yes, it is correct.goonking said:
goonking said:
oh, i forgot to multiply the area by 6, so it should be 6( 0.02m x 0.4m) = ACWatters said:
goonking said:
ok, got the answer to be 1.57 kg, sounds much more reasonable nowCWatters said:
should be 0.02 mCWatters said:
make sure you put in 0.02 m, not 0.2mRaghav Gupta said:
true, i was thinking that too when I tried to draw out the coolerCWatters said:
Isn't the answer given in your problem so you could verify?goonking said:
yes, the answer was 1.57 kgRaghav Gupta said:
A cooler works by insulation and cooling mechanisms. The insulation keeps the cool air inside the cooler from escaping, while the cooling mechanisms, such as ice or gel packs, lower the temperature inside the cooler.
A cooler works better in the shade because it is not exposed to direct sunlight, which can increase the temperature inside the cooler. Being in the shade also helps to keep the cooler's insulation and cooling mechanisms from melting or warming up too quickly.
The length of time a cooler can keep drinks cold at the beach depends on various factors, such as the outside temperature, the amount and type of insulation, and the type and amount of cooling mechanisms. In general, a well-insulated cooler with enough ice or gel packs can keep drinks cold for several hours at the beach.
You can use a regular cooler at the beach as long as it has enough insulation and cooling mechanisms to keep your drinks cold. However, specialized beach coolers often have additional features, such as sand-resistant exteriors and built-in cup holders, that can make them more convenient for beach use.
To make your cooler more effective at keeping drinks cold at the beach, you can use a combination of techniques. These include pre-chilling the cooler and its contents, using more insulation, such as towels or blankets, and using larger and more efficient cooling mechanisms, such as dry ice or frozen water bottles.
