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explain the physical significance of van der waals parameter?
on what factors does the surface tension depends?
Why 2nd Electron Gain Enthalpy of oxygen is positive?
by sucking through a straw a student can reduce the pressure in his lungs to 750mm of mercury density=13.6gm/cm3 using the straw he can drink water from a glass upto a maximum depth of
a) 10cm b) 75cm 3) 13.6cm 4)1.36cm
Explain why liquids like ether and acetone are kept in cool places?
The drain cleaner, Drainex contains small bits of aluminium which react with caustic soda to produce dihydrogen. What volume of dihydrogen at 20C and one bar will be released when 0.15g of aluminium reacts?
DIFFERENCE BETWEEN REAL GAS AND IDEAL GAS (IN POINTS)
What will be the graph between log p and inverse of log v ?
Under what conditions do real gases show maximum deviation from ideal behaviour?
5 moles of SO2 and 5 moles of O2 are allowed to react. At equilibrium, it
prove that PV=1/3 mNc2
calculate the molecular diamter of He from its van der waal's constant b=24?? proper explanation reqd.!
the volume of a gas at 0 degree C and 700mm Pressure is 760 cc. the no. of molecules present in this volume is___?
Calculate the volume occupied by 2 mole of N2 at 200K & 8.21 atm pressure, if PCVC / RTC = 3/8 and PrVr / Tr .
how many pi bonds & sigma bonds are there in napthalene? reply asap!!
boiling of a liquid cannot occur in a closed vessel.comment on the statement
EQUAL MASSES OF SO2, CH4, 02 ARE MIXED IN EMPTY CONTAINER AT 298 K , TOTAL PRESSURE IS 2.1 ATM . THE PARTIAL PRESSURE OF CH4 IN THE MIXTURE IS ??METHOD????1) 0.5 ATM2) 0.75 ATM3) 1.2 ATM4) 0.6 ATM
Why rain drops are spherical ?
x ml of H2 effuse through a hole in a container in 5 sec.the time taken for the effusionof same volume of the gas specified below under identical condition is
what is STP and NTP???
reply soon :)
explain why o-hydroxy benzaldehyde is liquid at room temp. while p-hydroxy benzaldehyde is a high melting solid?
a certain gas takes 3 times as long to effuse out as helium.what will be its molecular mass?
(Q.) Calculate the pressure exerted by 1 mol of CO2 at 273 K if the van der Waal’s constant ‘a’= 3.592 dm6atm mol-. Assume that the volume occupied by CO2 molecules is negligible.
A gaseous mixture contains oxygen and another unknown gas in the molar ratio 4:1 diffuses through a porous plug in 245 seconds. Under simillar conditions same volume of oxygen takes 220 seconds to diffuse. Find the molecular mass of the unknown gas.
A mixture of hydrogen and oxygen at 1 bar pressure contains 20% by mass of Hydrogen .Calculate the partial pressure of hydrogen .
what should be the percentage increase in pressure for 5% decrease in volume?
What do you mean by NTP (normal temperature and pressure) and STP (standard temperature and pressure)?
Can u explain me Liquefaction of Gases?
the weight of 1 mole of agas of density 0.1784g/L at NTP is ___?
why do gases show deviation from ideal behaviour?
16 ml of oxygen diffused through a porous partition in t seconds . what volume of carbon dioxide will diffuse in same time by volume
how to make a project on adulteration of food in chemistry ... what should be the contents of it?
Why are vegetables cooked with difficulty at a hill station?
why gases do not settle down at the bottom of the container when kept in it?
a balloon filled with an ideal gas is taken from the surface of the sea deep to a depth of 100m , what will be its volume in terms of its original volume?
what is the unit of the constants in van der waal's equation?
plzzzzzzzzz answer as soon as possible
Why Heavy water is used as moderators in nuclear reactions? And, can ordinary water act as moderators instead heavy water or not? If yes please or if no how and why?
What is Andrews Isotherm
at certain mixture of helium and argon weighing 5g occupies a volume of 10 l at 25 degreec and 1 atm pressur. wha t is the composition of the mixture in mass pecentage ?
will be the minimum pressure required to compress 500 dm3
of air at 1 bar to 200 dm3
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