Question

#81

there any combinations other than G with C or A with T that would be equally effective in hydrogen bonding? - 81. Explain why both NH, and AsH boil at higher temperatures than PH, does. 82. It takes energy to boil a pure liquid substance, but the substance has the same temperature after being boiled as before Recause the Putting It Together kinetic energy of us substance is directly proportional to the absolute

Answer 1

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Solution As H₂ boil at ligher temperature. NH₃ and than PH₂ - It is becausei- . - " In case of NH3 and PH3 In NH3, N is electronegative in nature. It shows hydrogen bonding with the 3- Hydrogen atoms.. so due to this strong H-bonding It boils at higher temperature thon PH₂ # In case of AS H₃ and PH3 - They both have dipole. dipole inturactions. The difference here is due to the polarizability. Aresenic molecule have more number of electrons than PH₂. so due to the mone number of electrons. in AS H₃. These eleco -thons show high polarizability than PH₂ and then fou have to more boiling point than PH₂