Advertisements
Advertisements
प्रश्न
Which of the following diagrams (Figure) depicts ideal gas behaviour?
 (a) |
 (b) |
 (c) |
 (d) |
उत्तर
a and c
Explanation:
For ideal gas behaviour,
PV = nRT ......(i)
(a) When pressure, P = constant
From (i) Volume V ∝ Temperature T
The graph of V versus T will be a straight line.
(b) When T = constant
From (i) PV = constant
So, the graph of P versus V will be a rectangular hyperbola. Hence this graph is wrong. The correct graph is shown below:
(c) When V = constant
From (i) P ∝ T
So, the graph is a straight line passing through the origin.
(d) From (i) PV ∝ T
⇒ `(PV)/T` = constant
So, the graph of PV versus T will be a straight line parallel to the temperature axis (x-axis).
i.e., the slope of this graph will be zero.
So, (d) is not correct.
APPEARS IN
संबंधित प्रश्न
Estimate the total number of air molecules (inclusive of oxygen, nitrogen, water vapour and other constituents) in a room of capacity 25.0 m3 at a temperature of 27 °C and 1 atm pressure
Three vessels of equal capacity have gases at the same temperature and pressure. The first vessel contains neon (monatomic), the second contains chlorine (diatomic), and the third contains uranium hexafluoride (polyatomic).
Is the root mean square speed of molecules the same in the three cases? If not, in which case is vrms the largest?
What do you understand by gas?
Name or state the following:
The standard pressure of a gas in cm. of mercury corresponding to one atmospheric pressure.
Name or state the following:
The absolute temperature value corresponding to 35°C.
Give reason for the following:
Temperature remaining constant the product of the vol. & the press, of a given mass of dry gas is a constant.
If the absolute temperature of a body is doubled, the power radiated will increase by a factor of ______
Gases exert pressure on the walls of the container because the gas molecules ______
Estimate the average thermal energy of a helium atom at the temperature on the surface of the Sun (6000 K).
The volume V of an enclosure contains a mixture of three gases, 16 g of oxygen, 28 g of nitrogen and 44 g of carbon dioxide at absolute temperature T. Consider R as universal gas constant. The pressure of the mixture of gases is ______.
