Suppose you transfer a certain amount of heat energy to a known amount of a liqu

Question

Suppose you transfer a certain amount of heat energy to a known amount of a liquid in a perfectly insulated cup and the temperature changes. Then you decide to alter the experiment in several different ways. For each of the alterations listed below, state whether the total change in temperature will be larger, smaller, or the same as that measured in the original experiment. You do not need to explain your answer. start with more liquid in the cup increase the starting temperature of the liquid heat for a longer time but transfer the same total energy use an equal mass of liquid that has a larger specific heat

Explanation / Answer

a) When the mass is more than the initial then the amount of heat taken is proportional to the mass so the temperature change would be less than the normal .

b) The amount of heat taken is same, mass and specific heat is also same so the change in temperature would also be same regardless of the initial temperature.

c) energy can be neither created nor destroyed. The amount of energy supplied here is constant so would be the observed changes.

d) When specific heat is high, the liquid needs more heat to change through same temperature change. so here if heat provided is same then temperature change decreases. to keep the same temperature change we need to add more heat.

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