Heat 3

HEAT-3 Problem 46 The gas hydrogen at has a density of 0.09g/litre. Find the gas constant for a unit mass of hydrogen Problem 47 Calculate the density of air at 1000C and 200K pa given its density at 00C and 101 k pa is 1.29 Problem 48 Calculate the density of hydrogen gas at 200C and 101Kpa given the molar mass of hydrogen molecule is 2 10-3 kgassume the molar gas constant R Problem 49 A faculty barometer tube has some air at the top above the mercury. When the length of air column is 260mm the reading of the mercury level is 740mm when the length of air column is decreased to 200mm by depressing the barometer tube further into the mercury , the reading of the mercury above the outside level becomes 747mm calculate the atmospheric pressure. (Densityof

Heat 3 from shahzadebaujiti