Question

14. 400g each of water, oil and sand are taken and heated from room temperature to 70 deg C on identical Bunsen burners. The time taken for each to reach that temperature is noted. Heating is then stopped and the time taken for each to cool to room temperature is noted. Which of these will be true?

A. Substances that take more time to get heated will take more time to cool.

B Substances that take more time to get heated will take less time to cool.

C.There is no connection between the time taken to get heated and to cool.

D.The time taken to get heated depends on the mass, the time taken to cool does not.​

Answer 1

Answer:

A is the correct answer I think

Answer 2

Answer:

One of the major effects of heat transfer is temperature change: heating increases the temperature while cooling decreases it. We assume that there is no phase change and that no work is done on or by the system. Experiments show that the transferred heat depends on three factors—the change in temperature, the mass of the system, and the substance and phase of the substance.

Explanation: