For each of the following statements determine whether it is true, false or unab

Question

For each of the following statements determine whether it is true, false or unable to tell. A coat keeps you warm in winter because it traps the air next to your body so that it doesn't move readily, The main reason a double pane window reduces heat loss is because of the gas between the two panes. When water is poured into ice, all the ice will melt. Assume no transfer of heat to the surrounding. Energy is transferred from the Sun to Earth by means of conduction. You can safely touch a piece of aluminum foil just taken out of a hot oven because it has low heat capacity.

Explanation / Answer

1. True as due to convection, much of the air mouces ere trapped inside and no transfer takes place from insde and outside

2. formula is H = KA DT/L

main reason is coeffeicnt of thermla conductuivty K

so true is

3. according to principl eof caorimetry, transfer takes places til more of them reaches equiiibiruim

so

ecaxtly qunatititiesa need ed to say more about his

unable to tell

4. Coduction takes place by means of direct contact so this must be flase as sun and Earth are not in contact

here heat transfer takes place by convection

so False it is

5. No, False it is

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