Matter and its nature, Dalton's atomic theory
- Dalton's Atomic theory could not explain which of the following? Answer: 4. Law of gaseous volume Key idea: Dalton's theory was about atoms combining in fixed whole-number ratios, with no concept of gas vo... 1
- The number of protons, neutrons and electrons in ^175_71Lu, respectively, are : Answer: 1. 71, 104 and 71 For ^A_ZX : protons =Z=71 ; neutrons =A-Z=175-71=104 ; electrons (neutral atom) =71 . Answer: 71, 104 and 71, opti... 1
- A gas at 350 K and 15 bar has molar volume 20 percent smaller than that for an ideal gas under the same conditions. The correct option about the gas and its compressibility factor (Z) is : Answer: 3. Z < 1 and attractive forces are dominant Compressibility factor Z = V_real/V_ideal . The molar volume is 20% smaller, so V_real =... 1