- #1
smillphysics
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You bought two kilograms of ice at -10 degrees celcius for your cooler when a friend suggests to instead use two kilograms of wood at -10 degrees celsius. Why should you stick with your ice?
Thermal Conductivities Latent Heats Specific Heats
Answer with either Good Reason, True but Irrelevant, Wrong
1.The latent heat of the ice is going to keep your drinks cooler for longer.
2.Water has a higher specific heat.
3.The heat conductivity of water is higher than the heat conductivity of wood.
4.Wood has a higher specific heat.
5.The heat conductivity of wood is higher than the heat conductivity of water.
I answered
1. Good Reason- I thought that the latent heat of ice would keep the cooler colder for longer. I also answered this same set of answers but this one marked as Wrong- but now I have changed it correct.
2. True, but irrelevant- Water does have a higher specific heat than wood so its true but it should be irrelevant because we are talking about ice and wood.
3. Good Reason- This is true I think so my only two options are good, which I answered but is this irrelevant?
4. Wrong- This is not true.
5. Wrong- This is not true.
Any help on where I am going wrong on this question?
Thanks,
Thermal Conductivities Latent Heats Specific Heats
Answer with either Good Reason, True but Irrelevant, Wrong
1.The latent heat of the ice is going to keep your drinks cooler for longer.
2.Water has a higher specific heat.
3.The heat conductivity of water is higher than the heat conductivity of wood.
4.Wood has a higher specific heat.
5.The heat conductivity of wood is higher than the heat conductivity of water.
I answered
1. Good Reason- I thought that the latent heat of ice would keep the cooler colder for longer. I also answered this same set of answers but this one marked as Wrong- but now I have changed it correct.
2. True, but irrelevant- Water does have a higher specific heat than wood so its true but it should be irrelevant because we are talking about ice and wood.
3. Good Reason- This is true I think so my only two options are good, which I answered but is this irrelevant?
4. Wrong- This is not true.
5. Wrong- This is not true.
Any help on where I am going wrong on this question?
Thanks,