Two separate bulbs contain ideal gases A and B, respectively. The density of gas A is twice that of gas B, and the molecular weight of gas A is half that of gas B; the two gases are at the same temperature. Calculate the ratio of the pressure of gas A to that of gas B.  R = 0.08205 L atm mol-1 K-1 T(K) = T (°C) + 273.15

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Q: Atom A Atom F NH Atom E HO Atom B Atom D H N F CH3 Atom C molecule 1

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Q: what is more sensitive in temperature changes, enthalpy or entropy? why?

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.