Consider the diagram. Top: A ball is shown traveling left to right toward an identical stationary ball. Middle: the first ball hits the second ball. Bottom: The right-hand ball travels to the right away from the left-hand ball, which is now stationary.
Which postulate of the kinetic-molecular theory best describes the event in the diagram?
Most of the volume of a gas is empty space.
All collisions between particles are perfectly elastic.
There is no force of attraction or repulsion between gas particles.
The average kinetic energy of particles depends only on temperature.
Answers: 1
Chemistry, 21.06.2019 20:50
Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread
Answers: 2
Chemistry, 22.06.2019 14:30
100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)
Answers: 1
Consider the diagram. Top: A ball is shown traveling left to right toward an identical stationary ba...
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