The pH of 10-3 mol dm-3 of an aqueous solution of H2SO4 is_________________?
(A) 3
(B) 2.7
(C) 2
(D) 1.5
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
Who made volume and pressure correction to explain deviation of gases from ideal behaviour ?
(A) Clausius
(B) Boltzman
(C) Charles
(D) Vander waal
What will be the pressure of 1 mole of an ideal gas maintained at 300 K and 250cm3 volume ?
(A) 98.5 atm
(B) 96.7 atm
(C) 95.8 atm
(D) 97.1 atm
What do we call to sudden expansion of plasma ?
(A) Avogadros law
(B) Grahams law of diffusion
(C) Joule Thompson effect
(D) Daltons law of partial pressure
The highest temperature at which a substance can exist as a liquid is called its______________?
(A) Critical temperature
(B) Standard temperature
(C) Absolute temperature
(D) Upper consulate temperature
The spreading of fragrance or scent in air is due to_______________?
(A) Diffusion
(B) Effusion
(C) Attraction with air
(D) Low dsensity
The partial pressure exerted by the water vapours is called_______________?
(A) Surface tension
(B) Aqueous tension
(C) Vapour pressure
(D) Hydraulic pressure
Negative log of mular concentration of H+ ions is called___________________?
(A) pH
(B) pOH
(C) pKa
(D) pKw
By the addition of base in waterpH will be_______________?
(A) more than 7
(B) less than 7
(C) equal to 7
(D) no effect