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Physics
Multiple Choice Question with Only One Choice Correct The relation between volume V, pressure P and absolute temperature T of an ideal gas is PV = xT where x is a constant. The value of x-depends upon (a) the mass of the gas molecule (b) the average kinetic energy of the gas molecules (c) P, V and T (d) the number of gas molecules in volume V
Chemistry
Calculate K_a for an acid whose 0.1 M solution has a pH of 4.50.
Mathematics
A circle is inscribed in an equilateral triangle of side a. The area of any square inscribed in this circle is ........