A. at sea level
B. at the center of the earth
C. when molecular momentum of the system becomes zero
D. under vacuum conditions
E. at a temperature of – 273 °K
Related Mcqs:
- The condition of perfect vacuum, i.e., absolute zero pressure can be attained at ____________________?
A. a temperature of – 273.16°C
B. a temperature of 0°C
C. a temperature of 273 °K
D. a negative pressure and 0°C temperature
E. can’t be attained - According to kinetic theory of gases, the absolute zero temperature is attained when___________________?
A. volume of the gas is zero
B. pressure of the gas is zero
C. kinetic energy of the molecules is zero
D. specific heat of gas is zero
E. mass is zero - According to Gay-Lussac law for a perfect gas, the absolute pressure of given mass varies directly as____________________?
A. temperature
B. absolute
C. absolute temperature, if volume is kept constant
D. volume, if temperature is kept constant
E. remains constant,if volume and temperature are kept constant - One barometric pressure or 1 atmospheric pressure is equal to___________________?
A. 1 kgf/cnr2
B. 1.033 kgf/cm2
C. 0 kgf/cm2
D. 1.0197 kgf/cm2
E. 100 kgf/cm2 - Kinetic energy of the molecules in terms of absolute temperature (T) is proportional to________________?
A. T
B. j
C. J2
D. Vr
E. 1/Vr - Work done is zero for the following process_________________?
A. constant volume
B. free expansion
C. throttling
D. all Of the above
E. none of the above - On volume basis, air contains following parts of oxygen _____________________?
A. 21
B. 23
C. 25
D. 77
E. 79 - A cycle consisting of two adiabatics and two constant pressure processes is known as___________________?
A. Otto cycle
B. Ericsson cycle
C. Joule cycle
D. Stirling cycle
E. Atkinson cycle - The ideal efficiency of a Brayton cycle without regeneration with increase ni pressure ratio will_________________?
A. increase
B. decrease
C. remain unchanged
D. increase/decrease depending on application
E. unpredictable - According to Avogadro’s law, for a given pressure and temperature, each molecule of a gas_________________?
A. occupies volume proportional to its molecular weight
B. occupies volume proportional to its specific weight
C. occupies volume inversely proportional to its molecular weight
D. occupies volume inversely proportional to its specific weight
E. occupies same volume
