Recent questions tagged ideal-gas-equation

What is the pressure of HCl gas at $-40^{\large\circ}C$ if its density is $8.0 kgm^{-3}? (R = 8.314 JK^{-1}mol^{-1})$

asked Apr 8, 2014 by sharmaaparna1

1 answer

A sample of gas occupies a volume of 512 mL at $20^{\large\circ}C$ and 74 cm of Hg as pressure . What volume would this gas occupy at STP?

asked Apr 8, 2014 by sharmaaparna1

1 answer

The intercept of plots of log V vs log T curves at constant pressure P for 1 mole gas will be

asked Apr 7, 2014 by sharmaaparna1

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For one mole of an ideal gas $(\large\frac{\delta P}{\delta T})_V.(\large\frac{\delta V}{\delta T})_P . (\large\frac{\delta V}{\delta T})_T $ is equal to ....

asked Apr 7, 2014 by sharmaaparna1

1 answer

The density of a mixture of $O_2$ and $N_2$ at NTP is 1.3g/l . Calculate partial pressure of $O_2$ .

asked Apr 5, 2014 by sharmaaparna1

1 answer

The pressure exerted by 12g of an ideal gas at temperature $t^{\large\circ}C$ in a vessel of volume V litre is one atm. when the temperature is increased by 10 degree at the same volume , the pressure increases by $10\%$. Calculate the temperature t and volume V (molecular weight of the gas = 120 )

asked Apr 4, 2014 by sharmaaparna1

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A gas filled freely collapsible balloon is pushed from the surface level of lake to a depth of 100 metre . Calculate what per cent of its original volume , the balloon finally have ? Assume ideal gas nature .

asked Apr 3, 2014 by sharmaaparna1

1 answer

An open flask contains air at $27^{\large\circ}C$. Calculate temperature at which it should be heated so that , $\large\frac{1}{3}rd$ of air measured at $27^{\large\circ}C$ escapes out.

asked Apr 3, 2014 by sharmaaparna1

1 answer

A flask is of a capacity of one litre . What volume of air will escape from the flask if it is heated from $27^{\large\circ}C$ to $37^{\large\circ}C$? Assume pressure as constant.

asked Apr 3, 2014 by sharmaaparna1

1 answer

0.553 g of a boron - hydrogen compound created a pressure of 0.658 atm in a bulb of 407 mL at $100^{\large\circ}C$. Analysis showed it to $85.7\%$ boron . Calculate its molecular formula.

asked Apr 3, 2014 by sharmaaparna1

1 answer

What would be the final pressure of $O_2$ in following experiment ? A collapsed polyethylene bag of 30 litre capacity is partially blown up by the addition of 10 litre of $N_2$ at 0.965 atm at 298K . Subsequently enough $O_2$ is pumped into bag so that at 298K and external pressure of 0.990 atm, the bag contains full 30 litre.

asked Apr 3, 2014 by sharmaaparna1

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The critical constant for water are $374^{\large\circ}C$ 218 atm and 0.0566 litre $mol^{-1}$. Calculate a , b and R.

asked Apr 2, 2014 by sharmaaparna1

1 answer

Calculate the temperature of gas if it obeys Van der Waals equation from the following data. A flask of 25 litre contains 10 mole of a gas under 50 atm . Given $a = 5.46\; atm \;litre^2mol^{-2}$ and $b = 0.031\;litre\;mol^{-1}$

asked Apr 2, 2014 by sharmaaparna1

1 answer

Using Van der Waals's equation . Calculate the constant 'a' when two mole of a gas confined in a four litre flask exerts a pressure of 11.0 atmospheres at a temperature of 300K . The value of b is 0.05 lit $mol^{-1}$

asked Apr 2, 2014 by sharmaaparna1

1 answer

A balloon of diameter 20 metre weighs 100kg . Calculate its pay-load if it is filled with He at 1.0atm and $27^{\large\circ}C$ . Density of air is 1.2 $kgm^{-3}$ . [$R = 0.082dm^3\;atm\; K^{-1}\;mol^{-1}$]

asked Apr 1, 2014 by sharmaaparna1

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A spherical balloon of 21cm diameter is to be filled up with $H_2$ at NTP from a cylinder containing the gas at 20 atm at $27^{\large\circ}C$. The cylinder can hold 2.82 litre of water at NTP . Calculate the number of balloons that can be filled up.

asked Mar 31, 2014 by sharmaaparna1

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A gas occupies 300mL at $27^{\large\circ}C$ and 730 mm pressure . What would be its volume at STP?

asked Mar 31, 2014 by sharmaaparna1

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A vessel has nitrogen gas and water vapour at a total pressure of 1 atm . The partial pressure of water vapour is 0.3 atm. When the contents of this vessel are transformed to another vessel having one third of the capacity of original vessel , completely at the same temperature , the total pressure of the system in the new vessel is:

asked Mar 31, 2014 by sharmaaparna1

1 answer

The pressure occupied by one mole of $CO_2$ at 273K is ........ (Given a for $CO_2$ = 3.592 $dm^6atmmol^{-2}$). Assume volume occupied by $CO_2$ molecules is negligible.

asked Mar 31, 2014 by sharmaaparna1

1 answer

A gas occupies 0.418 litre at 740 mm of Hg and $27^{\large\circ}C$. Calculate its Volume at STP.

asked Mar 29, 2014 by sharmaaparna1

1 answer

What is the pressure of 2 mole of ammonia at $27^{\large\circ}C$ when its volume is 5 litre according to Van der Waal's equation? (a = 4.17 b = 0.03711)

asked Mar 3, 2014 by sharmaaparna1

1 answer

A gas obeys the equation of state P(V-b) = RT (The parameter b is a constant). The slope for an isochore will be

asked Mar 3, 2014 by sharmaaparna1

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At low pressure Van der Waal's equation is reduced to $[P+\large\frac{a}{V^2}]V = RT$ The compressibility factor can be given as

asked Mar 3, 2014 by sharmaaparna1

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At high temperature and low pressure , the Van der Waal's equation is reduced to

asked Mar 3, 2014 by sharmaaparna1

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At low pressure , the Van der Waal's equation is written as

asked Mar 3, 2014 by sharmaaparna1

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Under critical conditions , the compressibility factor for a gas is

asked Mar 3, 2014 by sharmaaparna1

1 answer