Free System, Surroundings and State Functions MCQs with Answers
46 System, Surroundings and State Functions MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
A system is the part of the universe under study, while everything outside it is the surroundings; the boundary separates them. State functions such as pressure, temperature, volume, internal energy and enthalpy depend only on the state, unlike heat and work, which depend on the path taken.
Last updated
46 questions · page 3 of 3
- A. Unidirectional and irreversible
- B. Irreversible and a real process
- C. Unidirectional and a real process
- D. All of the above
Explanation: A is incorrect because spontaneous process is also real processB is incorrect because spontaneous process is also unidirectionalC is…
Correct answer: All of the above- A. Corrosion
- B. Sotubility
- C. Melting point
- D. Boiling point
Explanation: A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance.
Correct answer: Corrosion- A. closed system
- B. open system
- C. isolated system
- D. None of the above
Explanation: Thermoflask will not allow the exchange of matter and energy with the surrounding environment.
Correct answer: isolated system- A. Heat capacity
- B. 1 Joule
- C. Specific beat
- D. One calorie
Explanation: The Correct MCQ should be "The amount of heat required to raise the temperature of 1g of substance through 1K is called" Specific heat is…
Correct answer: Specific beat- A. The entropy of the system does not change
- B. The entropy of the system increases
- C. The entropy of the system decreases
- D. The entropy of the system does not decrease
Explanation: Essential conditions for the adiabatic process to take place are: i) System is perfectly insulated from surrounding.
Correct answer: The entropy of the system does not decrease- A. Clausius
- B. Carrot
- C. Pascal
- D. Kelvin
Explanation: Rudolf Clausius, a German physicist, introduced the concept of entropy in the study of thermodynamics.
Correct answer: Clausius