Related Questions
Oxygen gas generated by the decomposition of potassium chlorate is collected. The volume of oxygen collected at 24\,^\circ C and atmospheric pressure of 760 mm Hg is 128 mL. Calculated the mass of oxygen gas obtained. The pressure of the water vapour at 24\,^\circ C is 22.4 mm Hg
380 mL of a gas at 27\,^\circ C , 800 mm of Hg weighs 0.455 g. The molecular weight of gas is
If two moles of a ideal gas at 546 K occupy volume 44.8 L, then pressure must be
A perfect gas of a given mass is heated first in a small vessel and then in a large vessel, such that their volume remains unchanged. The curves are:
Two straight lines passing through the origin, the line for the smaller vessel having a greater slope
Two parallel straight lines, the line for smaller vessel at higher pressure
Two straight lines with different intercepts
Two curved lines passing through origin
Which law states that the pressure of a gas is inversely proportional to its volume at constant temperature?
Boyle's Law
Avogadro's Law
Charles's Law
Dalton's Law
What is the value of the ideal gas constant (R) in L atm/mol K?
8.314 J/mol K
0.0821 L atm/mol K
6.022 x 10^23 L atm/mol K
1.987 cal/mol K
An ideal gas undergoes a process in which its pressure P and volume V are related by , where n is a constant. If the gas expands adiabatically (, where ), which of the following statements is TRUE regarding the work done by the gas?
The work done depends on both the initial and final temperatures.
The work done is zero.
The work done depends only on the initial temperature.
The work done depends only on the final temperature.
An ideal gas expands according to constant. On expansion, the temperature of gas:
Will rise
Will drop
Will remain constant
Cannot be determined because the external pressure is not known
The pressure of gas having 2 mole in vessel at is:
A mixture of 1 mol of He and 1 mol of CO is contained in a vessel of volume V at 20Β°C. If the mixture behaves ideally, what is the pressure exerted by He?
Half of the total pressure
Equal to the total pressure
One-third of the total pressure
Twice the total pressure