The 2 kg pot at 25°C has the least thermal energy because it has both a smaller mass and a lower temperature than the other options.
The thermal energy of an object is related to both its mass and its temperature. In this case, we are considering iron pots of different masses and temperatures. Given the options, the 2 kg pot at 25°C would have the least thermal energy. This is because it has both a smaller mass and a lower temperature than all the other options listed.
The thermal energy is calculated by multiplying the mass, specific heat, and change in temperature. An object with a smaller mass and lower temperature would therefore have less thermal energy.
#SPJ5
Answer: D. A 2 kg pot at 25C.
Explanation:
(2) 2 (4) 10
Answer:
C. 3
Explanation:
If you look at aluminum (Al) in the Periodic Table of the Elements, you will see that its electron configuration is 2-8-3. The last number indicates the valence shell, which contains three electrons.
By definition, the correct answer is option D. Scientists can identify an element by looking at the structure of a single atom because the number of protons can be determined, and thus its identity.
All atoms are composed of a central nucleus in which there are particles with a positive electric charge, the protons, and neutron, which is an electrically neutral subatomic particle, around which other particles with a negative electric charge that are electrons move.
Thus, the atom is electrically neutral, since the positive charge of the protons is compensated by the negative charge of the electrons.
Atoms of different elements have different amounts of protons. The atomic number (which is identified by the letter Z) indicates the amount of protons that is present in the nucleus of an atom.
This number is then responsible for defining the electronic configuration of the atom and the chemical properties of the element. Then it is possible to say that the number of protons in the nucleus, that is to say the atomic number Z, of an atom determines its identity.
Finally, the correct answer is option D. Scientists can identify an element by looking at the structure of a single atom because the number of protons can be determined, and thus its identity.
Learn more:
b. Water is a polar molecule.
c. The strong surface tension of water allows it to adhere to the sides of a container and actually move up tubing via capillary action.
d. Water cannot be found in other places in the universe.
Velocity is the displacement made per unit of time.
If direction or speed of the object change it causes change in velocity.
Acceleration is the term used for measuring the change of velocity. Acceleration is the change of velocity per unit of time.