Question

Remote Islands (for example, Great Britain, Hawaii, Bermuda) tend to have more stable climates with smaller temperature changes than similar regions surrounded by land. Describe how heat energy, specific heat, and heat transfer to explain these facts.

Answer 1

@aaronq

Answer 2

What do you know about these terms?

Answer 3

um idk im really confused

Answer 4

In general, heat transfer is the exchange of heat (or more accurately, thermal energy) between two objects. A net transfers occurs when two objects are at different temperatures (heat leaving the hotter object and entering the colder body).

Water has an unusually high specific heat capacity (meaning that it takes a lot of energy to raise/lower it's temperature), and as a result large bodies of water (oceans, lakes) act as "buffers" to maintain the temperature of the area relatively constant.

SO, islands maintain a relatively constant temperature because they're surrounded by large bodies of water which act as heat dumps when there is a lot more thermal energy (e.g. lots of sunlight).

Answer 5

That's not the whole answer but hopefully it helps some

Answer 6

thank you so much ! could you help me with one more ?

Answer 7

no problem, yeah sure !

Answer 8

2. Sodium bicarbonate (NaHCO3) is what we call baking soda. When baking soda gets hot, it turns into sodium carbonate powder (Na2CO3), water vapor, and carbon dioxide. The enthalpy of this reaction is 129 kJ. Draw a diagram of this correct thermochemical equation for this reaction, explain how you came up with this equation, and explain what it tells you about the reaction.

Answer 9

So is the reaction endothermic or exothermic? does it NEED heat to react or PRODUCE heat when reacting?

Re-read the question if you're unsure.

Answer 10

needs heat to react ?

Answer 11

sorry, i'm not getting notifications.

but yes, that's right.

so the equaiton should look like:

reactants + heat -> products

Answer 12

The energy diagram looks like

Answer 13

Thank you !