Which of the following are dipole-dipole interactions that occur only between molecules containing N-H, O-H or F-H bonds?
2 answers:
Answer:
Hydrogen bonding
Explanation:
Hydrogen bonding is a type of dipole dipole interaction. It exist between H atom bonded to electronegative atom; O, N, F and other O, N, F of another molecule.
Some of the examples of compounds having hydrogen bonding are:
Hydrogen bonding exists because of development of dipole dipole interaction between H and electronegative atom.
As H is less electronegative as compared to O, N and F. So partial positive charge develop on H and partial negative chagre develop develop on the attached electronegative atom. Because of development of partial positive and partial negative charge, dipole dipole interaction occurs which leads to the development of hydrogen bonding.
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Answer:
0.72 mole of oxygen would produce 320.4 kJ of heat.
Explanation:
CH₄ (g) + 2O₂ (g) → CO₂ (g) + 2H₂O (ℓ) + 890kJ
According to the equation,
2 moles of O₂ produces 890 kJ of heat
So, 0.72 moles of O₂ will produce:
Therefore, 0.72 moles of oxygen would produce 320.4 kJ of heat.
