Stoichiometry The amount of Zn (atomic weight = 65) required to form 224 c.c. of H₂ at N.T.P. on treatment with dilute H₂SO₄ will be __________ gm. 65 0.065 0.65 6.5 65 0.065 0.65 6.5 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry According to Raoult's law, "The vapor pressure exerted by component in a solution is proportional to the mole fraction of that component." Raoult's law is not applicable under the following assumption/condition. No component is concentrated at the surface of the solution The component molecules are non polar and are of almost equal size The attractive forces between like and unlike molecules are almost equal In the formation of solution, chemical combination/molecular association between unlike molecules takes place No component is concentrated at the surface of the solution The component molecules are non polar and are of almost equal size The attractive forces between like and unlike molecules are almost equal In the formation of solution, chemical combination/molecular association between unlike molecules takes place ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One of the specific gravity scales is "Brix" (used speicifically for sugar solution). It is defined as Brix = 200 (G-1) Brix = 145 - (145/G) Brix = (400/G) - 400 None of these Brix = 200 (G-1) Brix = 145 - (145/G) Brix = (400/G) - 400 None of these ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Air at a temperature of 20°C and 750 mm Hg pressure has a relative humidity of 80%. What is its percentage humidity?Vapour pressure of water at 20°C is 17.5 mm Hg. 80 79.62 78.51 80.38 80 79.62 78.51 80.38 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Kopp's rule is helpful in finding the Activation energy Heat capacities of gases Molal heat capacities of gases Heat capacities of solids Activation energy Heat capacities of gases Molal heat capacities of gases Heat capacities of solids ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry For an ideal gas, the compressibility factor Zero Decreases with pressure rise Is unity at all temperature Is unity at Boyle's temperature Zero Decreases with pressure rise Is unity at all temperature Is unity at Boyle's temperature ANSWER DOWNLOAD EXAMIANS APP
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