Answer:
The difference in the observed temperature of measurement of the material and their apparent temperature when touched by hand is due to their relative higher affinity for heat. As such aluminum with a lower heat capacity or higher affinity or transmission ability for heat than the hand will feel cool when touched.
The materials have different specific heat capacity or heat affinity which is a measure of their ability to quickly take on the temperature of their surroundings, in this case their ability to conduct heat energy relative to the hand
Explanation:
The aluminium with specific heat capacity of 0.900 J/gm K requires very little heat to cause a temperature change compared to a wood with a specific heat capacity of 1.76 J/gm K such that when one touches a piece of aluminium, the aluminium quickly raises its temperature by absorbing heat from the hand which is observed as it (the aluminium), being cold. The same can be said of the paper towel
The relationship is
Heat loss or gain = mass × specific heat capacity × temperature change
In other words, aluminium has a higher affinity for heat than either the hand or wood
The answer is (2) gains 12 moles of electrons. In every chemical reaction, the electrons will not be destroyed or created, it will only transfer. So the Al loses electrons, the oxygen needs to gain the same amount of electrons.
Answer:
Option (C).
Explanation:
Insulin and glucagon are the important hormone that regulates the blood glucose level. The improper functioning of insulin can cause the diabetes in the individual organism.
The elevated level of insulin in blood causes the Generation of glucose 1-phosphate to maintain the blood glucose level. The glycogen synthesis is also used to bring down the blood glucose level to the normal level.
Thus, the correct answer is option (C).
