Q. No.What is the graph between volume and temperature in Charle's law?
1. An ellipse
2. A circle
3. A straight line
4. A parabola
Two vessels separately contain two ideal gases \(A\) and \(B\) at the same temperature, the pressure of \(A\) being twice that of \(B.\) Under such conditions, the density of \(A\) is found to be \(1.5\) times the density of \(B.\) The ratio of molecular weight of \(A\) and \(B\) is:
| 1. | \(\dfrac{2}{3}\) | 2. | \(\dfrac{3}{4}\) |
| 3. | \(2\) | 4. | \(\dfrac{1}{2}\) |
An isolated system-
| 1. | is a specified region where transfer of energy and mass takes place |
| 2. | is a region of constant mass and only energy is allowed through the closed boundaries |
| 3. | is one in which mass within the system is not necessarily constant. |
| 4. | cannot transfer neither energy nor mass to or from the surroundings. |
The figure below shows the graph of pressure and volume of a gas at two temperatures \(T_1\) and \(T_2.\) Which one, of the following, inferences is correct?
| 1. | \(T_1>T_2\) |
| 2. | \(T_1=T_2\) |
| 3. | \(T_1<T_2\) |
| 4. | No inference can be drawn |
The volume \(V\) versus temperature \(T\) graph for a certain amount of a perfect gas at two pressures \(P_1\) and
\(P_2\) are shown in the figure.
Here:
| 1. | \({P}_1<{P}_2\) |
| 2. | \({P}_1>{P}_2\) |
| 3. | \({P}_1={P}_2\) |
| 4. | Pressures can’t be related |
The equation of state for 5g of oxygen at a pressure P and temperature T, when occupying a volume V, will be: (where R is the gas constant)
1. PV = 5 RT
2. PV = (5/2) RT
3. PV = (5/16) RT
4. PV = (5/32) RT
During an experiment, an ideal gas is found to obey an additional law VP2 = constant. The gas is initially at temperature T and volume V. What will be the temperature of the gas when it expands to a volume 2V?
1.
2.
3.
4.
Volume, pressure, and temperature of an ideal gas are \(V,\) \(P,\) and \(T\) respectively. If the mass of its molecule is \(m,\) then its density is:
[\(k\)=Boltzmann's constant]
| 1. | \(mkT\) | 2. | \(\dfrac{P}{kT}\) |
| 3. | \(\dfrac{P}{kTV}\) | 4. | \(\dfrac{Pm}{kT}\) |
Which one, of the following, graphs represents the behaviour of an ideal gas at constant temperature?
| 1. |  |
2. |  |
| 3. |  |
4. |  |
How does the temperature change when the state of an ideal gas is changed according to the process shown in the figure?
| 1. | temperature increases continuously. |
| 2. | temperature decreases continuously. |
| 3. | temperature first increases and then decreases. |
| 4. | temperature first decreases and then increases. |
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