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Physics
Multiple Choice Question with Only One Choice Correct A vessel contains a mixture of 1 mole of oxygen and two moles of nitrogen at 300 K. The ratio of the rotational kinetic energy per O₂ molecule to that per N₂ molecule is (a) 1 : 1 (b) 1 : 2 (c) 2 : 1 (d) depends on the moment of inertia of the two molecules
Chemistry
Multiple-Choice Question Standard molar enthalpy of formation of CO₂ is equal to (a) zero (b) the standard molar enthalpy of combustion of gaseous carbon (c) the sum of standard molar enthalpies of formation of CO and CO₂ (d) the standard molar enthalpy of combustion of carbon(graphite)
Mathematics
Multiple-Choice Question Let F_n = 2²ⁿ + 1, where n N. (a) Last digit of F_n is 7 n 2. (b) hcf (F_n, F_m) = 1 n m. (c) F_n - 2 is divisible by F_m if n > m. (d) none of these