SPECIFIC HEAT LAB A hot iron is thrust into a barrel of water. What do you expec
ID: 1018216 • Letter: S
Question
SPECIFIC HEAT LAB
A hot iron is thrust into a barrel of water. What do you expect to happen to the water?
Now a second iron, not quite as hot as the first, is thrust into a second barrel of water, identical to the first. How do you expect this to compare to the first situation?
Two cubes of ice are set into two identical glasses of water. Cube A is twice the size of cube B. Which cup do you think will be colder after both ice cubes melt?
Specific heat depends on several factors. Pick the factor below that you suspect will not affect specific heat.
Water and iron have quite different specific heats. Iron heats up more than water when the same amount of heat energy is added to it. Which one of these substances do you deduce has the higher specific heat?
Which of the following do you think might cause a change in the specific heat of an object?
Material A has a specific heat of 100 J/kg-K and Material B has a specific heat of 200 J/kg-K. If the two materials start at the same temperature and have heat energy added at the same constant rate, which would you expect to reach a higher temperature first?
A hot iron is thrust into a barrel of water. What do you expect to happen to the water?
The water gets colder The water gets hotter The water does not change in temperature The water freezes into iceExplanation / Answer
1. in the fisrt question,when heated iron is placed in water,the heat is transferred from iron to water and the water gets warm.
so the option B is correct
2. As the same above,the heat is transferred from iron to water but not much in the first case because iron is not as much as hot when compared to 1st question.
so option B ks correct
3. cupA is muchcolder than cup B,because siza of ice cube in A is more than B i.e., cu eA have large surface area than cube B.
4. specific heat means the amount of heat required to raise the temperature of the system of 1 mole. so specific heat doesnot depends upon composition.
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