MEDIUM
11th Maharashtra Board
IMPORTANT
Earn 100

In a random temperature scale X, water boils at 200°X and freezes at 20°X. Find the boiling point of a liquid in this scale if it boils at 62°C.

Important Questions on Thermal Properties of Matter

EASY
11th Maharashtra Board
IMPORTANT
Physics>Chapter 7 - Thermal Properties of Matter>Exercises>Q 3
A gas at 900°C is cooled until both its pressure and volume are halved. Calculate its final temperature.
MEDIUM
11th Maharashtra Board
IMPORTANT
Physics>Chapter 7 - Thermal Properties of Matter>Exercises>Q 3
An aluminium rod and iron rod show 1.5 m difference in their lengths when heated at all temperature. What are their lengths at 0°C if coefficient of linear expansion for aluminium is 24.5×10-6 /°C and for iron is 11.9×10-6 /°C.
MEDIUM
11th Maharashtra Board
IMPORTANT
Physics>Chapter 7 - Thermal Properties of Matter>Exercises>Q 3
What is the specific heat capacity of a metal if 50 cal of heat is needed to raise 6 kg of the metal from 20°C to 62°C?
EASY
11th Maharashtra Board
IMPORTANT
Physics>Chapter 7 - Thermal Properties of Matter>Exercises>Q 3
The rate of flow of heat through a copper rod with temperature difference 30°C is 1500 cal/s. Find the thermal resistance of copper rod.
MEDIUM
11th Maharashtra Board
IMPORTANT
Physics>Chapter 7 - Thermal Properties of Matter>Exercises>Q 3
In electric kettle takes 20 minutes to heat a certain quantity of water from 0°C to boiling point. It requires 90 minutes to turn all the water at 100°C into steam. Find the latent heat of vaporisation. (Specific heat of water=1 cal/g°C)
HARD
11th Maharashtra Board
IMPORTANT
Physics>Chapter 7 - Thermal Properties of Matter>Exercises>Q 3
Find the temperature difference between two sides of a steel plate 4 cm thick, when heat is transmitted through the plate at the rate of 400 kcal per minute per square metre at steady state. Thermal conductivity of steel is 0.026 kcal/msK.