Chemistry
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The addition of a catalyst during a chemical reaction alters which of the following quantities?
Answer: C. Activation energy The addition of a catalyst during a chemical reaction alters activation energy.
Answer: C. Activation energy
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Identify the extensive quantity/quantities from the following
Answer: C. Both A and B The extensive quantities from the following are both enthalpy and volume.
Answer: C. Both A and B
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Which of the following is a state function?
Answer: C. q+w The following q+w is a state function.
Answer: C. q+w
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During free expansion, work done is
Answer: D. Zero and process is irreversible During free expansion, work done is zero and process is irreversible.
Answer: D. Zero and process is irreversible
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When a gas expands isothermally and reversibly, the work done by it is
Answer: A. Maximum When a gas expands isothermally and reversibly, the work done by it is maximum.
Answer: A. Maximum
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Heat exchange in a chemical reaction at constant temperature and pressure is called
Answer: C. Enthalpy Heat exchange in a chemical reaction at constant temperature and pressure is called enthalpy.
Answer: C. Enthalpy
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Which of the following is a closed system?
Answer: C. Tea in steel kettle The following tea in steel kettle is a closed system.
Answer: C. Tea in steel kettle
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Born-Haber cycle is very useful in the determination of
Answer: A. Lattice energy Born-Haber cycle is very useful in the determination of lattice energy.
Answer: A. Lattice energy
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The standard heat of formation of diamond is
Answer: C. Greater than that of graphite The standard heat of formation of diamond is greater than that of graphite.
Answer: C. Greater than that of graphite
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At the state of equilibrium, the entropy change of a system and its surrounding
Answer: B. Remains constant At the state of equilibrium, the entropy change of a system and its surrounding remains constant.
Answer: B. Remains constant
See lessAt the state of equilibrium, the entropy change of a system and its surrounding remains constant.