#1: the average velocities of gas molecules in cylinders a, b, c, and d are 20 m/s, 50 m/s, 60 m/s, and 100 m/s, respectively. the volume of each cylinder is the same, and each has the same number of moles of gas. which cylinder is the hottest?

Which of the following is not a characteristic of a hydrogen bond? 1. it is responsible for the unusual physical properties of water. 2. it is weaker than a covalent bond. 3. it is stronger than other dipole-dipole interactions. 4. it can occur when hydrogen is covalently bound to very electronegative elements liks f, cl, br and i.