The sum of all possible kinds of energies of all atoms, molecules or ions within a system is called:

Correct answer: B. Internal energy

  • A. Test
  • B. Internal energy
  • C. Potential energy
  • D. Bond energy

Explanation

Internal energy refers to the total energy of all the atoms, molecules, or ions within a system. It includes different types of energy, like kinetic energy (energy of motion) and potential energy (energy stored in bonds or positions). The internal energy of a system can change due to factors like heat transfer or work done on the system. It's an important concept in thermodynamics to understand the energy state of a system.

This question appeared on the KMU Centralized Admission Test 2020 paper, which you can sit online with every answer explained.

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About Internal Energy

Internal energy is the total microscopic kinetic and potential energy of a system and is a state function. The first law, ΔU = q + w, connects changes in internal energy with heat and work, including sign conventions, expansion or compression and constant-volume processes.

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