Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>INTRODUCTORY EXERCISE 20.2>Q 4

EASY

JEE Advanced

IMPORTANT

Earn 100

$(a)$ An aluminium measuring rod which is correct at $5 ° C$ , measures a certain distance as $88.42 cm$ at $35 ° C$ . Determine the error in measuring the distance due to the expansion of the rod. $α_{aluminium} = 2.4 \times 10^{- 5} ° C^{- 1}$
(b) If this aluminium rod measures a length of steel as $88.42 cm$ at $35 ° C$ , what is the correct length of the steel at $35 ° C$ ?

Important Questions on Thermometry, Thermal Expansion and Kinetic Theory of Gases

EASY

JEE Advanced

IMPORTANT

Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>INTRODUCTORY EXERCISE 20.2>Q 5

A steel tape is calibrated at

20 ° C

. On a cold day when the temperature is

- 15 ° C

, what will be the percentage error in the tape?

(α_{s t e e l} = 1.2 \times 10^{- 5}^{0} C^{- 1})

MEDIUM

JEE Advanced

IMPORTANT

Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>INTRODUCTORY EXERCISE 20.2>Q 6

From the graph for an ideal gas, state whether $m_{1}$ or $m_{2}$ is greater.

Question Image

MEDIUM

JEE Advanced

IMPORTANT

Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>INTRODUCTORY EXERCISE 20.2>Q 7

A vessel is filled with an ideal gas at a pressure of

20 atm

and is at a temperature of

27 ° C

. One-half of the mass is removed from the vessel and the temperature of the remaining gas is increased to

87 ° C

. At this temperature, find the pressure of the gas.

MEDIUM

JEE Advanced

IMPORTANT

Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>INTRODUCTORY EXERCISE 20.3>Q 1

A vessel contains a mixture of

7 g

of nitrogen and

11 g

of carbon dioxide at temperature

T = 290 K

. If the pressure of the mixture is

1 atm (= 1.01 \times 10^{5} N m^{- 2})

, calculate its density

(R = 8.31 J {mol}^{- 1} K^{- 1})

MEDIUM

JEE Advanced

IMPORTANT

Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>INTRODUCTORY EXERCISE 20.3>Q 2

An electric bulb of the volume

250 {cm}^{3}

was sealed off during manufacture at a pressure of

10^{- 3} mm

of mercury at

27 ° C

. Compute the number of air molecules contained in the bulb. Given that

R = 8.31 J {mol}^{- 1} K^{- 1}

and

N_{A} = 6.02 \times 10^{23} per mol

.

MEDIUM

JEE Advanced

IMPORTANT

Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>INTRODUCTORY EXERCISE 20.3>Q 3

State whether $p_{1} > p_{2}$ or $p_{2} > p_{1}$ for given mass of a gas?

Question Image

EASY

JEE Advanced

IMPORTANT

Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>INTRODUCTORY EXERCISE 20.3>Q 4

For a given mass of gas what is the shape of

p

versus

\frac{1}{V}

graph at constant temperature?

EASY

JEE Advanced

IMPORTANT

Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>INTRODUCTORY EXERCISE 20.3>Q 5

For a given mass of a gas, what is the shape of

p V

versus

T

graph in the isothermal process?