Multiple choice

Which of the following statements is/are false about the internal energy?

  1. The absolute value of internal energy can not be determined.

  2. The internal energy of one mole of a substance is same at any temperature or pressure.

  3. The measurement of heat change during a reaction by bomb calorimeter is equal to the internal energy change.

  4. Internal energy is an extensive property.

  5. The internal energy of a system can be changed by heating the system or by doing work on it.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This option is correct because the measurement of heat change during a reaction by bomb calorimeter is equal to the internal energy change, and hence this statement incorrect about internal energy.

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