Chemistry, 06.03.2020 19:20 Jbullon119
The French chemists, Pierre L. Dulong and Alexis T. Petit, noted in 1819 that the molar heat capacity of many solids at ordinary temperatures is proportional to the number of atoms per formula unit of the solid. They quantified their observations in what is known as Dulong and Petit's rule, which says that the molar heat capacity, C P , of a solid can be expressed as C P = N ⋅ 3 R where N is the number of atoms per formula unit and R is the universal gas constant. The observed heat capacity per gram of a compound containing rubidium and oxygen is 0.64 J ⋅ K − 1 ⋅ g − 1 . Use Dulong and Petit's rule to determine the empirical formula of the compound.
Answers: 3
Chemistry, 22.06.2019 07:30, bbyniah123
11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg
Answers: 3
Chemistry, 22.06.2019 20:00, teacherpreacher
For the reaction c6h14(g) & longrightarrow; c6h6(g) + 4h2(g), δp(h2)/δt was found to be 2.5 x 10-2 atm/s, where δp(h2) is the change in pressure of hydrogen. determine δp(c6h14)/δt for this reaction at the same time.
Answers: 2
The French chemists, Pierre L. Dulong and Alexis T. Petit, noted in 1819 that the molar heat capacit...
Spanish, 09.05.2021 01:00
History, 09.05.2021 01:00
Mathematics, 09.05.2021 01:00