Light with 4.5 eV of energy hits a metal surface with a work function of 3.2 eV. Will electrons be emitted ? If so how much energy ?

The ph of carrots are 5.0 how it is classified a. acidic b. basic c. indicator d. neutral

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?