When a car burns gasoline, much of the energy is released in the form of heat. Which of the following best describes this process in relation to the first law of thermodynamics?

A. Energy is not created nor destroyed, but it can change into matter.

B. Energy is not created nor destroyed, but it can change from one energy form to another.

C. Energy can be created from matter or used to produce matter.

D. Some useful energy is lost as heat whenever an energy transfer occurs.

E. Energy transfers are always 100% efficient in changing energy from one useful form to another.

Question

Physics

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8 February, 20:49

When a car burns gasoline, much of the energy is released in the form of heat. Which of the following best describes this process in relation to the first law of thermodynamics?

A. Energy is not created nor destroyed, but it can change into matter.

B. Energy is not created nor destroyed, but it can change from one energy form to another.

C. Energy can be created from matter or used to produce matter.

D. Some useful energy is lost as heat whenever an energy transfer occurs.

E. Energy transfers are always 100% efficient in changing energy from one useful form to another.

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Answers (1)

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Luca Hunt · Answer 1

Answer: Option (B) is correct.

The first law of thermodynamics is an adaptation of the law of conservation of energy, this is thoroughly adapted for the systems (thermodynamics). Law of conservation of energy defines that the total energy of a confined system is stable; energy can be transferred or converted from one form to another, but it cannot be formed or destroyed.