Everyday Science MCQs

5120 MCQs  (Page 317 of 512)

The gases become non-ideal at ________________?
A. High temperature and high pressure
B. Low temperature and low pressure
C. High temperature and low pressure
D. Low temperature and high pressure
Which one is the right value for R ?
A. 0.0821 atm dm3k-1mol-
B. 0.0821 atm m3k-1mol-1
C. 2 cal k-1 mol-1
D. 8.314 nm2k-1mol-1
The partial pressure exerted by the water vapours is called_______________?
A. Surface tension
B. Aqueous tension
C. Vapour pressure
D. Hydraulic pressure
Linds method is employed for__________________?
A. Separation of gases
B. Expansion of gases
C. Compression of gases
D. Liquefaction of gases
The weakest (in strength) of the following intermolecular forces is_______________?
A. Hydrogen bonding
B. Vander waals force
C. Forces among the polar molecules
D. Ionic bond
Which of the following statements is true about plasma________________?
A. It may be the first state of matter
B. It is not a phase transition
C. It is a conductor of electricity
D. All of the above