In which sample is the average kinetic energy of the particles the greatest?
1) 15ml of hcl(aq) at 20 degrees celsius
2) 15ml of h2o(liquid) at 30 degrees celsius
3) 10. ml of hcl(aq) at 25 degrees celsius
4) 10. ml of h2o(liquid) at 35 degrees celsius

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

For the reaction c6h14(g) & longrightarrow; c6h6(g) + 4h2(g), δp(h2)/δt was found to be 2.5 x 10-2 atm/s, where δp(h2) is the change in pressure of hydrogen. determine δp(c6h14)/δt for this reaction at the same time.