When molecular momentum of the system becomes zero

At sea level

At the temperature of - 273 K

At the centre of the earth

**Which of the following gas has a minimum molecular mass?****The smallest quantity of a substance, which can exist by itself in a chemically recognizable form is…****All perfect gases change in volume by 1/273th of its original volume at 0°C for every 1°C change…****When two bodies are in thermal equilibrium with a third body, they are also in thermal equilibrium with…****Which is the incorrect statement about Carnot cycle?****If Kh is the torque resisting capacity of a hollow shaft and Ks is that of a solid shaft, of the same…****A concentrated load is one which****The efficiency of Diesel cycle with decrease in cut-off****Energy can neither be created nor destroyed, but it can be transformed from one form to another. This…****The throttling process is __________ process.****In a prismatic member made of two materials so joined that they deform equally under axial stress, the…****The compression ratio for petrol engines is****When a body is subjected to biaxial stress i.e. direct stresses (σx) and (σy) in two mutually…****In compression test, the fracture in cast iron specimen would occur along****When gas is heated at constant pressure, the heat supplied is utilised in****The bending moment at a point on a beam is the algebraic ________ of all the moments on either side…****The maximum stress produced in a bar of tapering section is at****A riveted joint in which the number otrivets decrease from innermost to outer most rows is called****The atomic mass of nitrogen is __________ oxygen.****The compression ratio is the ratio of****Formula based on IS codes is based on****The absolute zero pressure can be attained at a temperature of****The processes occuring in open system which permit the transfer of mass to and from the system, are…****The efficiency of Stirling cycle is __________ Carnot cycle.****When a body is subjected to three mutually perpendicular stresses, of equal intensity, the ratio of…****Shear modulus is the ratio of****The neutral axis of the cross-section a beam is that axis at which the bending stress is****Within elastic limit, stress is****The general gas energy equation is (where Q1 - 2 = Heat supplied, dU = Change in internal energy, and…****True stress strain-curve for materials is plotted between**