English

Write the statement for Charles’ law

Advertisements
Advertisements

Question

Write the statement for Charles’ law

One Line Answer
Advertisements

Solution

Statement for Charles’ law: At constant pressure, the volume of a fixed mass of a gas is directly proportional to its temperature in Kelvin.

shaalaa.com
  Is there an error in this question or solution?
Chapter 10: States of Matter - Exercises [Page 158]

APPEARS IN

Balbharati Chemistry [English] Standard 11 Maharashtra State Board
Chapter 10 States of Matter
Exercises | Q 3. (I)(b) | Page 158

RELATED QUESTIONS

Explain Why?

"When stating the volume of a gas, the pressure and temperature should also be given."


Give reason for the following:

Gases have a lower density compared to solids or liquids.


Give reason for the following:

Gases exert pressure in all directions.


What is meant by aqueous tension? How is the pressure exerted by a gas corrected to account for aqueous tension?


Answer in one sentence.

A bubble of methane gas rises from the bottom of the North sea. What will happen to the size of the bubble as it rises to the surface?


Convert the following temperature from degree Celcius to kelvin.

−197° C


Convert the following pressure value into Pascals.

1 kPa


Convert the following pressure value into Pascals.

1 atmosphere


Hot air balloons float in the air because of the low density of the air inside the balloon. Explain this with the help of an appropriate gas law.


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 pressure is increased from 1.0 bar to 2.0 bar at a constant temperature.


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

With the help of the graph answer the following -

At constant temperature, the Graph shows the relationship between pressure and volume. Represent the relation mathematically.


Solve the following.

A balloon is inflated with helium gas at room temperature of 25°C and at 1 bar pressure when its initial volume is 2.27L and allowed to rise in the air. As it rises in the air external pressure decreases and the volume of the gas increases till finally, it bursts when external pressure is 0.3bar. What is the limit at which the volume of the balloon can stay inflated?


Solve the following.

The volume of a given mass of a gas at 0°C is 2 dm3. Calculate the new volume of the gas at constant pressure when the temperature is decreased by 10°C.


State Boyle's law.


Name two items that can serve as a model for Gay Lusaac’s law and explain.


Give the mathematical expression that relates gas volume and moles.


Explain the following observation.

The size of a weather balloon becomes larger and larger as it ascends up to larger altitude


Sulphur hexafluoride is a colourless, odourless gas; calculate the pressure exerted by 1.82 moles of the gas in a steel vessel of volume 5.43 dm3 at 69.5 °C, assuming ideal gas behaviour


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 ____________.


At what temperature the volume of a gas becomes absolutely zero?


Isochor is the graph plotted between ______.


The number of molecules in 8.96 litres of gas at 0°C and 1 atm. pressure is approximately ______.


Identify the correct relationship between pressure (P), density (d), molar mass (M) and Temperature (T) for an ideal gas from the following.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×