Balbharati solutions for Chemistry [English] 11 Standard chapter 10 - States of Matter [Latest edition]

Select and write the most appropriate alternatives from the given choices.

The unit of viscosity is

Select and write the most appropriate alternatives from the given choices.

Which of the following is true for 2 moles of an ideal gas?

Select and write the most appropriate alternatives from the given choices.

Intermolecular forces in liquid are -

Select and write the most appropriate alternatives from the given choices.

Interactive forces are __________ in an ideal gas.

Select and write the most appropriate alternatives from the given choices.

At constant temperature the pressure of 22.4 dm³ volume of an ideal gas was increased from 105 kPa to 210 kPa, New volume could be -

Answer in one sentence.

Name the term used for the mixing of different gases by random molecular motion and frequent collision.

Answer in one sentence.

The pressure that each individual gas would exert if it were alone in the container, what do we call it as?

Answer in one sentence.

When a gas is heated the particles move more quickly. What is the change in the volume of a heated gas if the pressure is kept constant?

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.

−15° C

Convert the following temperature from degree Celcius to kelvin.

25° C

Convert the following temperature from degree Celcius to kelvin.

−197° C

Convert the following temperature from degree Celcius to kelvin.

273° C

Convert the following pressure value into Pascals.

10 atmosphere

Convert the following pressure value into Pascals.

1 kPa

Convert the following pressure value into Pascals.

107000 Nm⁻²

Convert the following pressure value into Pascals.

1 atmosphere

Convert exactly 1.5 atm to pascals

Convert 89 kPa to newton per square metre (Nm⁻²)

Convert 101.325 kPa to bar.

Convert −100° C to kelvin

Convert 0.124 torr to the standard atmosphere

If the density of a gas is measured at constant temperature and pressure then which of the following statement is correct?

Observe the following conversion.

Is the above reaction is in accordance with the principle of stoichiometry?

Observe the following conversion.

Is the above reaction is in accordance with the principle of stoichiometry?

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
	______________

Identify the gas laws from the following diagram.

Diagram	Gas laws
	______________

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.

List the characteristic physical properties of the gases.

Define the term polarizability

Define the term Hydrogen bond

Define the term Aqueous tension

Define the term Dipole moment

Would it be easier to drink water with a straw on the top of Mount Everest or at the base? Explain.

Identify type of the intermolecular forces in the following compound.

CH₃-OH

Identify type of the intermolecular forces in the following compound.

CH₂=CH₂

Identify type of the intermolecular forces in the following compound.

CHCl₃

Identify type of the intermolecular forces in the following compound.

CH₂Cl₂

Name the types of intermolecular forces present in Ar.

Name the types of intermolecular forces present in Cl₂.

Name the types of intermolecular forces present in CCl₄.

Name the types of intermolecular forces present in HNO₃.

Match the pairs of the following:

Write the statement for Boyle’s law

Write the statement for Charles’ law

Differentiate between Real gas and Ideal gas.

State and write the mathematical expression for Dalton’s law of partial pressure and explain it with a suitable example.

Derive an Ideal gas equation. Mention the terms involved in it.

Write how ideal gas equation is utilised to obtain combined gas law.

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.

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.

Write Postulates of the kinetic theory of gases.

Write a short note on Vapour pressure.

Write a short note on Surface tension.

Write a short note on Viscosity.

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.

A syringe has a volume of 10.0 cm³ at pressure 1 atm. If you plug the end so that no gas can escape and push the plunger down, what must be the final volume to change the pressure to 3.5 atm?

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 increased by 10°C.

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.

Solve the following.

A hot air balloon has a volume of 2800 m³ at 99°C. What is the volume if the air cools to 80°C?

Solve the following.

At 0°C, a gas occupies 22.4 liters. How much hot must be the gas in celsius and in kelvin to reach a volume of 25.0 liters?

Solve the following.

A 20 L container holds 0.650 mol of He gas at 37°C at a pressure of 628.3 bar. What will be new pressure inside the container if the volume is reduced to 12 L. The temperature is increased to 177°C and 1.25 mol of additional He gas was added to it?

Solve the following.

Nitrogen gas is filled in a container of volume 2.32 L at 32°C and 4.7 atm pressure. Calculate the number of moles of the gas.

Solve the following.

At 25°C and 760 mm of Hg pressure, a gas occupies 600 mL volume. What will be its pressure at the height where the temperature is 10°C and the volume of the gas 640 mL?

Solve the following.

A neon-dioxygen mixture contains 70.6 g dioxygen and 167.5g neon. If the pressure of the mixture of the gases in the cylinder is 25 bar. What is the partial pressure of dioxygen and neon in the mixture?

Solve the following.

Calculate the pressure in atm of 1.0 mole of helium in a 2.0 dm³ container at 20.0°C.

Solve the following.

Calculate the volume of 1 mole of a gas at exactly 20°C at a pressure of 101.35 kPa.

Solve the following.

Calculate the number of molecules of methane in 0.50 m³ of the gas at a pressure of 2.0 × 10² kPa and a temperature of exactly 300 K.