Advertisements
Advertisements
प्रश्न
Consider a sample of a gas in a cylinder with a movable piston.
Show diagrammatically the changes in the position of the piston, if pressure is increased from 1.0 bar to 2.0 bar at a constant temperature.
Advertisements
उत्तर
At constant T, P ∝ `1/"V"`
Since, pressure doubles, the volume will become half.
APPEARS IN
संबंधित प्रश्न
Give reason for the following:
Gases exert pressure in all directions.
State the following:
The absolute temperature of a gas at 7°C
Convert exactly 1.5 atm to pascals
Convert 89 kPa to newton per square metre (Nm−2)
Convert 0.124 torr to the standard atmosphere
Identify the gas laws from the following diagram.
| Diagram | Gas laws |
 |
______________ |
Consider a sample of a gas in a cylinder with a movable piston.
Show diagrammatically the changes in the position of the piston, if the temperature is decreased from 300 K to 150 K at constant pressure.
Consider a sample of a gas in a cylinder with a movable piston.
Show diagrammatically the changes in the position of the piston, if the temperature is decreased from 400 K to 300 K, and pressure is decreased from 4 bar to 3 bar.
Match the pairs of the following:
| Column ‘A’ | Column ‘B’ |
| a. Boyle’s law | i. at constant pressure and volume |
| b. Charles’ law | ii. at constant temperature |
| iii. at constant pressure |
Write the statement for Boyle’s law
With the help of the graph answer the following -
At constant temperature, Identify the law.
With the help of the graph answer the following -
At constant temperature, Write the statement of law.
The temperatures at which real gases obey the ideal gas laws over a wide range of pressure is called __________.
State Boyle's law.
Explain the following observation.
Liquid ammonia bottle is cooled before opening the seal
Explain the following observation.
The type of an automobile is inflated to slightly lesser pressure in summer than in winter
A sample of gas at 15°C at 1 atm. has a volume of 2.58 dm3. When the temperature is raised to 38°C at 1 atm does the volume of the gas Increase? If so, calculate the final volume.
Hydrochloric acid is treated with a metal to produce hydrogen gas. Suppose a student carries out this reaction and collects a volume of 154.4 × 10−3 dm3 of a gas at a pressure of 742 mm of Hg at a temperature of 298 K. What mass of hydrogen gas (in mg) did the student collect?
At 25°C and 1 atm, a cylinder containing 10 L of an ideal gas is connected to the empty cylinder with a capacity of 20 L. The pressures exerted by gas m both the cylinders will be ____________.
For a given mass of an ideal gas, which of the following statements is CORRECT?
A certain sample of gas has a volume of 0.2 L at one atmosphere pressure and 273.15 K. What is the volume of gas at 273.15°C at same pressure?
According to Andrews isothermals, the minimum temperature at which carbon dioxide gas obeys Boyles law is ______.
At what temperature the volume of a gas becomes absolutely zero?
A gas occupies a volume of 4.2 dm3 at 101 kPa pressure. What volume will gas occupy if the pressure is increased to 235 kPa keeping the temperature constant?
If 2 moles of an ideal gas at 546 K has volume of 44.8 L, then what will be it's pressure? (R = 0.082)
10 g of gas at one atomospheric pressure is cooled from 273.15°C to 0°C keeping the volume constant. What is the final pressure?
