Titanium metal requires a photon with a minimum energy of 4.41 x 10-19 j to emit electrons.

(a) what is the minimum frequency of light necessary to emit electrons from titanium via the photoelectric effect?

(b) what is the wavelength of this light?

(c) is it possible to eject electrons from titanium metal using visible light?

(d)if titanium is irradicated with light of 233 nm, what is the maximum possible kinetic energy of the emitted electrons?

(e) what is the maximum number of electrons that can be freed by a burst of light whose total energy is 2.00 uj?

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answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.

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