A. Radio-isotopes
B. Pouring soap solution on the surface and locating the gas bubbles
C. Halide torch
D. Pungent smell of mercaptans present in the gas
Related Mcqs:
- A long cylinder and a sphere both of 5 cms diameter are made from the same porous material. The flat ends of cylinder are sealed. Both the cylinder and sphere are saturated with the same solution of sodium chloride. Later both the objects are immersed for a short and equal interval of time in a large tank of water which is well agitated. The fraction of salt remaining in the cylinder and the sphere are Xc and Xs respectively. Which of the following statement is correct ?
A. Xc > Xs
B. Xc = Xs
C. Xc < Xs
D. Xc greater/less than Xs depending on the length of the cylinder - The compressibility factor of a gas is given by (where, V1 = actual volume of the gas V2 = gas volume predicted by ideal gas law)____________________?
A. V1/V2
B. V2/V1
C. V1 – V2
D. V1.V2 - The density of a gas ‘X’ is twice that of another gas ‘Y’. If the molecular weight of gas ‘Y’ is ‘M’; then the molecular weight of the gas ‘X’ will be________________?
A. 2M
B. M/2
C. M
D. M/4 - One mole of nitrogen at 8 bar and 600 K is contained in a piston-cylinder arrangement. It is brought to 1 bar isothermally against a resisting pressure of 1 bar. The work done (in Joules) by the gas is_________________?
A. 30554
B. 10373
C. 4988.4
D. 4364.9 - Filling of gas from a high pressure cylinder into small bottles is an example of a/an ______________ process?
A. Equilibrium
B. Adiabatic
C. Steady
D. Unsteady - An ideal material for making cooking vessels should have___________________?
A. High heat capacity
B. Low heat capacity
C. High thermal conductivity
D. Both B. and C. - Assuming applicability of ideal gas law, the pure component volume of the vapor in a saturated gas can be calculated from theoretical relationship. The volumetric composition of a vapor saturated gas is independent of the___________________?
A. Nature of the liquid
B. Nature of the gas
C. Temperature of the liquid
D. Total pressure - Temper brittleness of a material can be fairly detected by the ________________ test ?
A. Fatigue
B. Notched bar impact
C. Tensile
D. Hardness - A cylinder contains 640 gm of liquid oxygen. The volume occupied (in litres) by the oxygen, when it is released and brought to standard conditions (0°C, 760 mm Hg) will be _____________ litres?
A. 448
B. 224
C. 22.4
D. Data insufficient; can’t be computed - Gibbs phase rule finds application, when heat transfer occurs by___________________?
A. Conduction
B. Convection
C. Radiation
D. Condensation
