Assuming that CO2 obeys perfect gas law, calculate the density of CO2 (in kg/m3) at 263°C and 2 atm ?

A. Its atomic number
B. The number of protons or electrons present in it
C. The number of neutrons present in it
D. None of these

A. Solute concentration
B. Temperature
C. Both A. & B.
D. Neither A. nor B.

A. Atomic number
B. Mass number
C. Atomic weight
D. Metallic characteristics

A. 15.5
B. 16
C. 16.5
D. 17

A. Collide without loss of energy
B. Do work equal to loss in kinetic energy
C. Are above the inversion temperature
D. Exert no attractive force on each other

A. Sublimation
B. Melting
C. Vaporisation
D. All A., B. & C.