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Directions: Read the passages and choose the best answer to each question.
Passage
The molar heat of fusion is the amount of heat necessary to melt (or freeze) 1.00 mole of a substance at its melting point at a constant pressure. The molar heat of fusion for water is 6.02 kilojoules per mole (kJ/mol).
The equation for molar heat of fusion is:
q = ΔHfus(mass/molar mass)
In this equation, q is the total amount of heat involved, ΔHfus represents the molar heat of fusion (this value is a constant for a given substance), and (mass/molar mass) represents the number of moles of a given substance.
The following table lists molar heats of fusion, boiling points, and melting points for several elements.
Q. The boiling point of potassium is 759.90 C. If potassium follows the general pattern of the other elements in the table, its heat of fusion would be:
  • a)
    below 8 kJ/mol.
  • b)
    between 8 and 11 kJ/mol.
  • c)
    between 11 and 14 kJ/mol.
  • d)
    between 14 and 18 kJ/mol.
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Directions:Read the passages and choose the best answer to each questi...
The table shows that, in general, higher boiling points result in a higher molar heat of fusion. Therefore, because the boiling point for potassium is lower than the boiling point for calcium, it is likely that the molar heat of fusion for potassium will be lower than the molar heat of fusion for calcium.
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Directions:Read the passages and choose the best answer to each question.PassageThe molar heat of fusion is the amount of heat necessary to melt (or freeze) 1.00 mole of a substance at its melting point at a constant pressure. The molar heat of fusion for water is 6.02 kilojoules per mole (kJ/mol).The equation for molar heat of fusion is:q = ΔHfus(mass/molar mass)In this equation, q is the total amount of heat involved, ΔHfus represents the molar heat of fusion (this value is a constant for a given substance), and (mass/molar mass) represents the number of moles of a given substance.The following table lists molar heats of fusion, boiling points, and melting points for several elements.Q.The boiling point of potassium is 759.90 C. If potassium follows the general pattern of the other elements in the table, its heat of fusion would be:a)below 8 kJ/mol.b)between 8 and 11 kJ/mol.c)between 11 and 14 kJ/mol.d)between 14 and 18 kJ/mol.Correct answer is option 'A'. Can you explain this answer?
Question Description
Directions:Read the passages and choose the best answer to each question.PassageThe molar heat of fusion is the amount of heat necessary to melt (or freeze) 1.00 mole of a substance at its melting point at a constant pressure. The molar heat of fusion for water is 6.02 kilojoules per mole (kJ/mol).The equation for molar heat of fusion is:q = ΔHfus(mass/molar mass)In this equation, q is the total amount of heat involved, ΔHfus represents the molar heat of fusion (this value is a constant for a given substance), and (mass/molar mass) represents the number of moles of a given substance.The following table lists molar heats of fusion, boiling points, and melting points for several elements.Q.The boiling point of potassium is 759.90 C. If potassium follows the general pattern of the other elements in the table, its heat of fusion would be:a)below 8 kJ/mol.b)between 8 and 11 kJ/mol.c)between 11 and 14 kJ/mol.d)between 14 and 18 kJ/mol.Correct answer is option 'A'. Can you explain this answer? for ACT 2025 is part of ACT preparation. The Question and answers have been prepared according to the ACT exam syllabus. Information about Directions:Read the passages and choose the best answer to each question.PassageThe molar heat of fusion is the amount of heat necessary to melt (or freeze) 1.00 mole of a substance at its melting point at a constant pressure. The molar heat of fusion for water is 6.02 kilojoules per mole (kJ/mol).The equation for molar heat of fusion is:q = ΔHfus(mass/molar mass)In this equation, q is the total amount of heat involved, ΔHfus represents the molar heat of fusion (this value is a constant for a given substance), and (mass/molar mass) represents the number of moles of a given substance.The following table lists molar heats of fusion, boiling points, and melting points for several elements.Q.The boiling point of potassium is 759.90 C. If potassium follows the general pattern of the other elements in the table, its heat of fusion would be:a)below 8 kJ/mol.b)between 8 and 11 kJ/mol.c)between 11 and 14 kJ/mol.d)between 14 and 18 kJ/mol.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for ACT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions:Read the passages and choose the best answer to each question.PassageThe molar heat of fusion is the amount of heat necessary to melt (or freeze) 1.00 mole of a substance at its melting point at a constant pressure. The molar heat of fusion for water is 6.02 kilojoules per mole (kJ/mol).The equation for molar heat of fusion is:q = ΔHfus(mass/molar mass)In this equation, q is the total amount of heat involved, ΔHfus represents the molar heat of fusion (this value is a constant for a given substance), and (mass/molar mass) represents the number of moles of a given substance.The following table lists molar heats of fusion, boiling points, and melting points for several elements.Q.The boiling point of potassium is 759.90 C. If potassium follows the general pattern of the other elements in the table, its heat of fusion would be:a)below 8 kJ/mol.b)between 8 and 11 kJ/mol.c)between 11 and 14 kJ/mol.d)between 14 and 18 kJ/mol.Correct answer is option 'A'. Can you explain this answer?.
Solutions for Directions:Read the passages and choose the best answer to each question.PassageThe molar heat of fusion is the amount of heat necessary to melt (or freeze) 1.00 mole of a substance at its melting point at a constant pressure. The molar heat of fusion for water is 6.02 kilojoules per mole (kJ/mol).The equation for molar heat of fusion is:q = ΔHfus(mass/molar mass)In this equation, q is the total amount of heat involved, ΔHfus represents the molar heat of fusion (this value is a constant for a given substance), and (mass/molar mass) represents the number of moles of a given substance.The following table lists molar heats of fusion, boiling points, and melting points for several elements.Q.The boiling point of potassium is 759.90 C. If potassium follows the general pattern of the other elements in the table, its heat of fusion would be:a)below 8 kJ/mol.b)between 8 and 11 kJ/mol.c)between 11 and 14 kJ/mol.d)between 14 and 18 kJ/mol.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for ACT. Download more important topics, notes, lectures and mock test series for ACT Exam by signing up for free.
Here you can find the meaning of Directions:Read the passages and choose the best answer to each question.PassageThe molar heat of fusion is the amount of heat necessary to melt (or freeze) 1.00 mole of a substance at its melting point at a constant pressure. The molar heat of fusion for water is 6.02 kilojoules per mole (kJ/mol).The equation for molar heat of fusion is:q = ΔHfus(mass/molar mass)In this equation, q is the total amount of heat involved, ΔHfus represents the molar heat of fusion (this value is a constant for a given substance), and (mass/molar mass) represents the number of moles of a given substance.The following table lists molar heats of fusion, boiling points, and melting points for several elements.Q.The boiling point of potassium is 759.90 C. If potassium follows the general pattern of the other elements in the table, its heat of fusion would be:a)below 8 kJ/mol.b)between 8 and 11 kJ/mol.c)between 11 and 14 kJ/mol.d)between 14 and 18 kJ/mol.Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Directions:Read the passages and choose the best answer to each question.PassageThe molar heat of fusion is the amount of heat necessary to melt (or freeze) 1.00 mole of a substance at its melting point at a constant pressure. The molar heat of fusion for water is 6.02 kilojoules per mole (kJ/mol).The equation for molar heat of fusion is:q = ΔHfus(mass/molar mass)In this equation, q is the total amount of heat involved, ΔHfus represents the molar heat of fusion (this value is a constant for a given substance), and (mass/molar mass) represents the number of moles of a given substance.The following table lists molar heats of fusion, boiling points, and melting points for several elements.Q.The boiling point of potassium is 759.90 C. If potassium follows the general pattern of the other elements in the table, its heat of fusion would be:a)below 8 kJ/mol.b)between 8 and 11 kJ/mol.c)between 11 and 14 kJ/mol.d)between 14 and 18 kJ/mol.Correct answer is option 'A'. Can you explain this answer?, a detailed solution for Directions:Read the passages and choose the best answer to each question.PassageThe molar heat of fusion is the amount of heat necessary to melt (or freeze) 1.00 mole of a substance at its melting point at a constant pressure. The molar heat of fusion for water is 6.02 kilojoules per mole (kJ/mol).The equation for molar heat of fusion is:q = ΔHfus(mass/molar mass)In this equation, q is the total amount of heat involved, ΔHfus represents the molar heat of fusion (this value is a constant for a given substance), and (mass/molar mass) represents the number of moles of a given substance.The following table lists molar heats of fusion, boiling points, and melting points for several elements.Q.The boiling point of potassium is 759.90 C. If potassium follows the general pattern of the other elements in the table, its heat of fusion would be:a)below 8 kJ/mol.b)between 8 and 11 kJ/mol.c)between 11 and 14 kJ/mol.d)between 14 and 18 kJ/mol.Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of Directions:Read the passages and choose the best answer to each question.PassageThe molar heat of fusion is the amount of heat necessary to melt (or freeze) 1.00 mole of a substance at its melting point at a constant pressure. The molar heat of fusion for water is 6.02 kilojoules per mole (kJ/mol).The equation for molar heat of fusion is:q = ΔHfus(mass/molar mass)In this equation, q is the total amount of heat involved, ΔHfus represents the molar heat of fusion (this value is a constant for a given substance), and (mass/molar mass) represents the number of moles of a given substance.The following table lists molar heats of fusion, boiling points, and melting points for several elements.Q.The boiling point of potassium is 759.90 C. If potassium follows the general pattern of the other elements in the table, its heat of fusion would be:a)below 8 kJ/mol.b)between 8 and 11 kJ/mol.c)between 11 and 14 kJ/mol.d)between 14 and 18 kJ/mol.Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Directions:Read the passages and choose the best answer to each question.PassageThe molar heat of fusion is the amount of heat necessary to melt (or freeze) 1.00 mole of a substance at its melting point at a constant pressure. The molar heat of fusion for water is 6.02 kilojoules per mole (kJ/mol).The equation for molar heat of fusion is:q = ΔHfus(mass/molar mass)In this equation, q is the total amount of heat involved, ΔHfus represents the molar heat of fusion (this value is a constant for a given substance), and (mass/molar mass) represents the number of moles of a given substance.The following table lists molar heats of fusion, boiling points, and melting points for several elements.Q.The boiling point of potassium is 759.90 C. If potassium follows the general pattern of the other elements in the table, its heat of fusion would be:a)below 8 kJ/mol.b)between 8 and 11 kJ/mol.c)between 11 and 14 kJ/mol.d)between 14 and 18 kJ/mol.Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice ACT tests.
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