Chapter 3, Problem 141EQ

451. Use the diffusion model from lecture that showed the likelihood of mixing occurring in a lattice model with eight lattice sites: Case Left Right A B C Permeable Barrier → and show that with 2V lattice sites on each side of the permeable barrier and a total of 2V white particles and 2V black particles, that perfect de-mixing (all one color on each side of the barrier) becomes increasingly unlikely as V increases.

46. Consider an ideal gas that occupies 2.50 dm³ at a pressure of 3.00 bar. If the gas is compressed isothermally at a constant external pressure so that the final volume is 0.500 dm³, calculate the smallest value Rest can have. Calculate the work involved using this value of Rext.

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2010. Suppose that a 10 kg mass of iron at 20 C is dropped from a heigh of 100 meters. What is the kinetics energy of the mass just before it hits the ground, assuming no air resistance? What is its speed? What would be the final temperature of the mass if all the kinetic energy at impact is transformed into internal energy? The molar heat capacity of iron is Cpp = 25.1J mol-¹ K-1 and the gravitational acceleration constant is 9.8 m s¯² |

ell last during 7. Write the isotopes and their % abundance of isotopes of i) Cl ii) Br 8. Circle all the molecules that show Molecular ion peak as an odd number? c) NH2CH2CH2NH2 d) C6H5NH2 a) CH³CN b) CH3OH

Calsulate specific heat Dissolution of NaOH ก ง ง Mass of water in cup Final temp. of water + NaOH Initial temp. of water AT Water AH Dissolution NaOH - "CaicuraORT. AH (NaOH)=-AH( 30g (water) 29.0°C 210°C 8°C (82) 100 3.. =1003.20 Conjos

Please provide throrough analysis to apply into further problems.

Molecular ion peak: the peak corresponding to the intact morecure (with a positive charge) 4. What would the base peak and Molecular ion peaks when isobutane is subjected to Mass spectrometry? Draw the structures and write the molecular weights of the fragments. 5. Circle most stable cation a) tert-butyl cation b) Isopropyl cation c) Ethyl cation. d)Methyl cation

How many arrangements are there of 15 indistinguishable lattice gas particles distributed on: a.V = 15 sites b.V = 16 sites c.V = 20 sites