Advertisements
Advertisements
प्रश्न
Which of the following diagrams (Figure) depicts ideal gas behaviour?
 (a) |
 (b) |
 (c) |
 (d) |
Advertisements
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
During the practical session in the lab when hydrogen sulphide gas having offensive odour is prepared for some test, we can smell the gas even 50 metres away. Explain the phenomenon.
What is diffusion? Give an example to illustrate it.
Give reasons for the following:
Gas fills the vessel completely in which it is kept.
Give reason for the following:
Volumes of gases are converted into s.t.p. conditions and then compared.
The average energy per molecule is proportional to ______
If the absolute temperature of a body is doubled, the power radiated will increase by a factor of ______
Show that for monoatomic gas the ratio of the two specific heats is 5:3.
Gases exert pressure on the walls of the container because the gas molecules ______
The equation of state for 2g of oxygen at a pressure 'P' and temperature 'T', when occupying a volume 'V' will be ______.
Estimate the average thermal energy of a helium atom at room temperature (27 °C).
Estimate the average thermal energy of a helium atom at the temperature on the surface of the Sun (6000 K).
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).
Do the vessels contain an equal number of respective molecules?
Calculate the number of atoms in 39.4 g gold. Molar mass of gold is 197g mole–1.
A box of 1.00 m3 is filled with nitrogen at 1.50 atm at 300K. The box has a hole of an area 0.010 mm2. How much time is required for the pressure to reduce by 0.10 atm, if the pressure outside is 1 atm.
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 ______.
Cooking gas containers are kept in a lorry moving with uniform speed. The temperature of the gas molecules inside will ______.
At room temperature, a diatomic gas is found to have an r.m.s. speed of 1930 ms-1. The gas is ______.
