consider a circuit 7v, R1 1ohm, R2 3ohm, R3 2ohm, R4 1ohm, R5 2 ohm and current 7A Calculate the voltage across 1ohm resistor using 1- mesh analysis, 2-nodal analysis, 3-superposition, 4-thevenin's theorem, 5-Norton's theorem

On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?