if the barometric pressure is 740.8 torr, water vapor pressure at 20.0 ºc is 17.5 torr. what is the pressure of h2 gas in atm?

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

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