Which Best Describes the First Law of Thermodynamics

question 20

Multiple Choice

Which best describes the first law of thermodynamics?

• A)Energy can be created or destroyed and it cannot be changed from one form of energy to another.
• 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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