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Standard Molar Enthalpy of Formation is
- a)The standard enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregation
- b)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 2 bar and 25° C.
- c)The standard enthalpy change for the formation of one kg of a compound from its elements in their most stable states of aggregation
- d)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 10 bar and 30° C.
Correct answer is option 'A'. Can you explain this answer?
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Standard Molar Enthalpy of Formation isa)The standard enthalpy change ...
The standard enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregation is enthalpy of formation.
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Standard Molar Enthalpy of Formation isa)The standard enthalpy change ...
Standard Molar Enthalpy of Formation refers to the enthalpy change that occurs when one mole of a compound is formed from its elements in their most stable states of aggregation under standard conditions. Standard conditions typically refer to a pressure of 1 bar and a temperature of 25°C.
Explanation:
a) The standard enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregation.
- This option correctly defines the standard molar enthalpy of formation. It states that the enthalpy change is measured when one mole of a compound is formed from its elements in their most stable states of aggregation.
- The enthalpy change is typically measured under standard conditions, which include a pressure of 1 bar and a temperature of 25°C.
- This measurement allows for a consistent and standardized comparison of the enthalpy changes associated with the formation of different compounds.
b) The standard enthalpy change for the formation of one mole of a compound from its elements at a pressure of 2 bar and 25°C.
- This option describes a specific condition (pressure of 2 bar) which is not part of the standard conditions for measuring the standard molar enthalpy of formation.
- The standard enthalpy change is defined under standard conditions, which include a pressure of 1 bar and a temperature of 25°C.
- Deviating from these standard conditions would result in a different enthalpy change value, which is not representative of the standard molar enthalpy of formation.
c) The standard enthalpy change for the formation of one kg of a compound from its elements in their most stable states of aggregation.
- This option incorrectly mentions the formation of one kilogram (kg) of a compound, whereas the standard molar enthalpy of formation is defined for one mole of a compound.
- The enthalpy change is measured for the formation of one mole of a compound, regardless of its mass.
- The use of kilograms instead of moles would result in a different enthalpy change value, which does not represent the standard molar enthalpy of formation.
d) The standard enthalpy change for the formation of one mole of a compound from its elements at a pressure of 10 bar and 30°C.
- Similar to option b, this option describes a specific condition (pressure of 10 bar and temperature of 30°C) that deviates from the standard conditions for measuring the standard molar enthalpy of formation.
- The standard enthalpy change is defined under standard conditions, which include a pressure of 1 bar and a temperature of 25°C.
- Deviating from these standard conditions would result in a different enthalpy change value, which is not representative of the standard molar enthalpy of formation.
In conclusion, option 'A' is the correct answer because it accurately defines the standard molar enthalpy of formation as the enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregation under standard conditions.
Explanation:
a) The standard enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregation.
- This option correctly defines the standard molar enthalpy of formation. It states that the enthalpy change is measured when one mole of a compound is formed from its elements in their most stable states of aggregation.
- The enthalpy change is typically measured under standard conditions, which include a pressure of 1 bar and a temperature of 25°C.
- This measurement allows for a consistent and standardized comparison of the enthalpy changes associated with the formation of different compounds.
b) The standard enthalpy change for the formation of one mole of a compound from its elements at a pressure of 2 bar and 25°C.
- This option describes a specific condition (pressure of 2 bar) which is not part of the standard conditions for measuring the standard molar enthalpy of formation.
- The standard enthalpy change is defined under standard conditions, which include a pressure of 1 bar and a temperature of 25°C.
- Deviating from these standard conditions would result in a different enthalpy change value, which is not representative of the standard molar enthalpy of formation.
c) The standard enthalpy change for the formation of one kg of a compound from its elements in their most stable states of aggregation.
- This option incorrectly mentions the formation of one kilogram (kg) of a compound, whereas the standard molar enthalpy of formation is defined for one mole of a compound.
- The enthalpy change is measured for the formation of one mole of a compound, regardless of its mass.
- The use of kilograms instead of moles would result in a different enthalpy change value, which does not represent the standard molar enthalpy of formation.
d) The standard enthalpy change for the formation of one mole of a compound from its elements at a pressure of 10 bar and 30°C.
- Similar to option b, this option describes a specific condition (pressure of 10 bar and temperature of 30°C) that deviates from the standard conditions for measuring the standard molar enthalpy of formation.
- The standard enthalpy change is defined under standard conditions, which include a pressure of 1 bar and a temperature of 25°C.
- Deviating from these standard conditions would result in a different enthalpy change value, which is not representative of the standard molar enthalpy of formation.
In conclusion, option 'A' is the correct answer because it accurately defines the standard molar enthalpy of formation as the enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregation under standard conditions.
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Standard Molar Enthalpy of Formation isa)The standard enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregationb)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 2 bar and 25° C.c)The standard enthalpy change for the formation of one kg of a compound from its elements in their most stable states of aggregationd)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 10 bar and 30° C.Correct answer is option 'A'. Can you explain this answer?
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Standard Molar Enthalpy of Formation isa)The standard enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregationb)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 2 bar and 25° C.c)The standard enthalpy change for the formation of one kg of a compound from its elements in their most stable states of aggregationd)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 10 bar and 30° C.Correct answer is option 'A'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Standard Molar Enthalpy of Formation isa)The standard enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregationb)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 2 bar and 25° C.c)The standard enthalpy change for the formation of one kg of a compound from its elements in their most stable states of aggregationd)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 10 bar and 30° C.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Standard Molar Enthalpy of Formation isa)The standard enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregationb)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 2 bar and 25° C.c)The standard enthalpy change for the formation of one kg of a compound from its elements in their most stable states of aggregationd)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 10 bar and 30° C.Correct answer is option 'A'. Can you explain this answer?.
Standard Molar Enthalpy of Formation isa)The standard enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregationb)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 2 bar and 25° C.c)The standard enthalpy change for the formation of one kg of a compound from its elements in their most stable states of aggregationd)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 10 bar and 30° C.Correct answer is option 'A'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Standard Molar Enthalpy of Formation isa)The standard enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregationb)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 2 bar and 25° C.c)The standard enthalpy change for the formation of one kg of a compound from its elements in their most stable states of aggregationd)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 10 bar and 30° C.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Standard Molar Enthalpy of Formation isa)The standard enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregationb)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 2 bar and 25° C.c)The standard enthalpy change for the formation of one kg of a compound from its elements in their most stable states of aggregationd)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 10 bar and 30° C.Correct answer is option 'A'. Can you explain this answer?.
Solutions for Standard Molar Enthalpy of Formation isa)The standard enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregationb)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 2 bar and 25° C.c)The standard enthalpy change for the formation of one kg of a compound from its elements in their most stable states of aggregationd)The standard enthalpy change for the formation of one mole of a compound from its elements in at a pressure of 10 bar and 30° C.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11.
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