Calculate the volume occupied by 1.50 × 10 23 molecules of chlorine gas at S T P .

We know that, 1 mole of Cl 2 = 22 . 4 Liters at STP = 6 . 022 × 10 23 6 . 022 × 10 23 molecules have 22.4 Liters volume of STP Therefore, 1 . 50 × 10 23 molecules will have volume = 1 . 50 × 10 23 × 22 . 4 6 . 022 × 10 23 = 5 . 576 Litres at STP

When the temperature of a gas is kept constant, the volume V of a fixed mass of gas is inversely proportional to its pressure P . In other words, for an invariable mass of a perfect gas, at constant temperature, the product of its pressure and volume is a constant. P ∝ 1 V ⇒ P V = constant

Name the physical quantity which is measured in calories. How is calorie related to the SI unit of that quantity?

A calorie is used to measure heat energy. The amount of heat energy required to raise the temperature of a quantity of water through 1 ° C . SI unit of energy is joule J . The relation between calorie and heat energy is 1 calorie = 4 . 186 J or 4 . 2 J

E M B I B E

Science Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Thermal Physics>Exercise>Q 40

EASY

10th Tamil Nadu Board

IMPORTANT

Earn 100

Explain the experiment of measuring the real and apparent expansion of a liquid with a neat diagram.

Important Questions on Thermal Physics

EASY

10th Tamil Nadu Board

IMPORTANT

Science Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Thermal Physics>Exercise>Q 43

Will the volume of one mole of chlorine gas at STP be the same or different from the volume of one mole of sulphur dioxide gas at STP?

MEDIUM

10th Tamil Nadu Board

IMPORTANT

Science Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Thermal Physics>Exercise>Q 44

Calculate the volume occupied by

1.50 \times 10^{23}

molecules of chlorine gas at

S T P

.

HARD

10th Tamil Nadu Board

IMPORTANT

Science Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Thermal Physics>Exercise>Q 45

A vessel contains N molecules of chlorine gas at a certain temperature and pressure. How many molecules of sulphur dioxide gas will the vessel contain at the same temperature and pressure?

HARD

10th Tamil Nadu Board

IMPORTANT

Science Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Thermal Physics>Exercise>Q 46

A flask