Chemistry Exam  >  Chemistry Questions  >  The standard enthalpies of formation of CO2(g... Start Learning for Free
The standard enthalpies of formation of CO2(g), H2O(l) and glucose(s) at 25°C are –400 kJ mol–1,
–300 kJ mol–1 and –1300 kJ mol–1, respectively. The standard enthalpy of combustion per gram of glucose at 25°C is:
  • a)
    +2900 kJ
  • b)
    –2900 kJ
  • c)
    –16.11 kJ
  • d)
    +16.11 kJ
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
The standard enthalpies of formation of CO2(g), H2O(l) and glucose(s) ...
We get -2900. it is said per gram.

divide it with molecular mass(180).
Free Test
Community Answer
The standard enthalpies of formation of CO2(g), H2O(l) and glucose(s) ...
The standard enthalpy of formation (∆Hf) is the enthalpy change when one mole of a compound is formed from its constituent elements in their standard states. The standard enthalpies of formation of CO2(g), H2O(l), and glucose(s) at 25°C are as follows:

- CO2(g): ∆Hf = -393.5 kJ/mol
- H2O(l): ∆Hf = -285.8 kJ/mol
- Glucose(s): ∆Hf = -1273.3 kJ/mol

These values indicate the amount of heat released or absorbed when one mole of each compound is formed from its constituent elements in their standard states at 25°C.
Explore Courses for Chemistry exam
The standard enthalpies of formation of CO2(g), H2O(l) and glucose(s) at 25°C are –400 kJ mol–1,–300 kJ mol–1 and –1300 kJ mol–1, respectively. The standard enthalpy of combustion per gram of glucose at 25°C is:a)+2900 kJb)–2900 kJc)–16.11 kJd)+16.11 kJCorrect answer is option 'C'. Can you explain this answer?
Question Description
The standard enthalpies of formation of CO2(g), H2O(l) and glucose(s) at 25°C are –400 kJ mol–1,–300 kJ mol–1 and –1300 kJ mol–1, respectively. The standard enthalpy of combustion per gram of glucose at 25°C is:a)+2900 kJb)–2900 kJc)–16.11 kJd)+16.11 kJCorrect answer is option 'C'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about The standard enthalpies of formation of CO2(g), H2O(l) and glucose(s) at 25°C are –400 kJ mol–1,–300 kJ mol–1 and –1300 kJ mol–1, respectively. The standard enthalpy of combustion per gram of glucose at 25°C is:a)+2900 kJb)–2900 kJc)–16.11 kJd)+16.11 kJCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The standard enthalpies of formation of CO2(g), H2O(l) and glucose(s) at 25°C are –400 kJ mol–1,–300 kJ mol–1 and –1300 kJ mol–1, respectively. The standard enthalpy of combustion per gram of glucose at 25°C is:a)+2900 kJb)–2900 kJc)–16.11 kJd)+16.11 kJCorrect answer is option 'C'. Can you explain this answer?.
Solutions for The standard enthalpies of formation of CO2(g), H2O(l) and glucose(s) at 25°C are –400 kJ mol–1,–300 kJ mol–1 and –1300 kJ mol–1, respectively. The standard enthalpy of combustion per gram of glucose at 25°C is:a)+2900 kJb)–2900 kJc)–16.11 kJd)+16.11 kJCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Chemistry. Download more important topics, notes, lectures and mock test series for Chemistry Exam by signing up for free.
Here you can find the meaning of The standard enthalpies of formation of CO2(g), H2O(l) and glucose(s) at 25°C are –400 kJ mol–1,–300 kJ mol–1 and –1300 kJ mol–1, respectively. The standard enthalpy of combustion per gram of glucose at 25°C is:a)+2900 kJb)–2900 kJc)–16.11 kJd)+16.11 kJCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of The standard enthalpies of formation of CO2(g), H2O(l) and glucose(s) at 25°C are –400 kJ mol–1,–300 kJ mol–1 and –1300 kJ mol–1, respectively. The standard enthalpy of combustion per gram of glucose at 25°C is:a)+2900 kJb)–2900 kJc)–16.11 kJd)+16.11 kJCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for The standard enthalpies of formation of CO2(g), H2O(l) and glucose(s) at 25°C are –400 kJ mol–1,–300 kJ mol–1 and –1300 kJ mol–1, respectively. The standard enthalpy of combustion per gram of glucose at 25°C is:a)+2900 kJb)–2900 kJc)–16.11 kJd)+16.11 kJCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of The standard enthalpies of formation of CO2(g), H2O(l) and glucose(s) at 25°C are –400 kJ mol–1,–300 kJ mol–1 and –1300 kJ mol–1, respectively. The standard enthalpy of combustion per gram of glucose at 25°C is:a)+2900 kJb)–2900 kJc)–16.11 kJd)+16.11 kJCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice The standard enthalpies of formation of CO2(g), H2O(l) and glucose(s) at 25°C are –400 kJ mol–1,–300 kJ mol–1 and –1300 kJ mol–1, respectively. The standard enthalpy of combustion per gram of glucose at 25°C is:a)+2900 kJb)–2900 kJc)–16.11 kJd)+16.11 kJCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Chemistry tests.
Explore Courses for Chemistry exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev