Question

POTENTIALLY MULTIPLE CORRECT ANSWERS

( 1 ) [6] At the same temperature and pressure, consider reactions (1) A+B → 2C, and (2) A+B+C, what is the relationship between their standard free energy changes and equilibrium constants? (a) AG] =2AG2, ki = K2 (b) AG1 = 2AG2, K1 = (K2)2 (c) AG = AG2, K1 = (K2) (d) AG = AG2, k = K2 [7] Which of the following is true about light? (a) Light is a wave and a particle at the same time (b) Photon is quantized electromagnetic radiation (e) Any object can emit electromagnetic radiation even if it is a blackbody (d) In photoelectric effect, emitted photoelectron's kinetic energy is proportional to the incident photon's frequency [8] De Broglie equation of wavelength of matter 2 = h/(mv) can be applied to which of the following cases? (a) When the matter is macroscopic and mass is larger than 1 kg, such as a human (b) When the matter is microscopic particle and the mass is smaller than an atom (e) When the matter behaves like a particle (d) When the matter is traveling in the speed of light

Answer 1

bi At B ~ 2e ki Kg = (XP) "" tatt B e K2 (Kg)%= k). Shiz200g: foresta serane. The Rilak 462 = RT in K₂ v = RT ln(K)/2 = + RT inki right ausiner. [2 444 = 46, Cs Scanned with CamScanner

- 77 light has dual nature.. 1 Thus it can exist as leath. waie flight. @ right answer. Here, all the options are correct. because, in photoelectric effect, Ke of the follection & frequens again, fonction is a quantised electromagnetic pantich .:: E2 nm. . generally 4 blackbody electromagnetic absorb an radiation but can also emit radiation, & blackbody generally 8) De-broglie equation of wavelength of matter a= hipa home can be applied- bor 6 when the matter is microscopic Particle f the mass is CS ceann smaller than an atom,