The branch of physical chemistry which deals with the quantities of heat absorbed or evolved during a chemical reaction is called:
Correct answer: B. Thermochemistry
- A. Thermodynamics
- B. Thermochemistry
- C. Calorimetry
- D. None of the above
Explanation
Thermochemistry is the branch of physical chemistry that focuses on the study of heat changes that accompany chemical reactions. It specifically deals with the quantities of heat absorbed or evolved, making it the correct answer. Thermodynamics, while related and broader, encompasses the general study of energy transformations, not limited to chemical reactions. Calorimetry, on the other hand, is a method used to measure heat changes but is not a distinct branch of chemistry. 'None of the above' is incorrect as thermochemistry is the accurate term.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Thermochemistry and Energetics of Chemical Reactions
Thermochemistry measures energy changes in chemical reactions and distinguishes exothermic from endothermic processes. Work covers systems, surroundings and state functions, internal energy, the first law of thermodynamics, enthalpy and Hess's law, including the sign conventions used when heat enters or leaves a system.
Practise Thermochemistry and Energetics of Chemical Reactions
729 free Thermochemistry and Energetics of Chemical Reactions MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Thermochemistry and Energetics of Chemical Reactions questions
Use the following bond energies to calculate ΔH°f or the given reaction.(H - C = 414; C - C = 347; C - C = 619; H - H = 435).CH2 = CH2(g) +H2(g) → CH3 - CH3(g)
Use the given standard enthalpies of formation to determine the heat of reaction of the reaction:C3H6O(l) + 4O2(g) → 3 CO2(g) + 3 H2O(l)ΔH°f CO2(g) = -394 kJ/moleΔH°f H2O(l) = -286 kJ/moleΔH°f C3H6O(l) = -250 kJ/mole
Use the given standard enthalpies of formation to determine the heat of reaction of the following reaction:2 LiOH(s) + CO₂(g) → Li₂CO₃(s) + H₂O(l)ΔH°f LiOH(s) = -487 kJ/moleΔH°f Li₂CO₃(s) = -1216 kJ/moleΔH°f H₂O(l) = -286 kJ/moleΔH°f CO₂(g) = -394 kJ/mole
The study of general laws governing the process which involve heat changes, and the conservation of energy is called:
Which of the following is applicable for a thermo chemical reaction?
An exothermic reaction is one which: