a cup which contains water at room temperature. The cup is perfectly insulated s

Question

a cup which contains water at room temperature. The cup is perfectly insulated so that no heat can transfer into or out of the cup. A small coffee cup heater inside the cup is used to transfer heat to the water. The water does not boil.

1) If heat is transferred to the cup at a steady rate, which of the graphs below best represents the shape of the graph of the temperature of the water over time as the heat is transferred?___1____

describes a change in the situation described in question above (a heater in water in a perfectly insulated cup). For each question, choose the answer that best describes the temperature rise due to the change described.

The temperature rise would be

A) four times as large.

B) two times as large.

C) the same.

D) half as large.

E) one quarter as large.

2) There is the same amount of water and twice the amount of heat is transferred. ___ 2____

3) There is half as much water and the same amount of heat is transferred. ____3____

4) The water is replaced by an equal mass of a liquid with half the specific heat capacity of water. The same amount of heat is transferred.___4____

Explanation / Answer

Rate the best answer with the highest ratings...!!!

the graph that best represents the nature between T and t is GRAPH D

Linear dependence...

2) dQ = m * c * dT

Q is doubled...So dT will double..

Option B

3) m is halved...

So dT will be doubled...

Option B

4) C is halved...so dT will double

Option B

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