HARD
11th Tamil Nadu Board
IMPORTANT
Earn 100

What are the limitations of the first law of thermodynamics?

Important Questions on Heat and Thermodynamics

MEDIUM
11th Tamil Nadu Board
IMPORTANT
Physics Standard 11 Vol II>Chapter 8 - Heat and Thermodynamics>EVALUATION>Q III
Explain the heat engine and obtain its efficiency.
HARD
11th Tamil Nadu Board
IMPORTANT
Physics Standard 11 Vol II>Chapter 8 - Heat and Thermodynamics>EVALUATION>Q III
Explain in detail Carnot heat engine.
MEDIUM
11th Tamil Nadu Board
IMPORTANT
Physics Standard 11 Vol II>Chapter 8 - Heat and Thermodynamics>EVALUATION>Q III
Derive the expression for Carnot engine efficiency.
HARD
11th Tamil Nadu Board
IMPORTANT
Physics Standard 11 Vol II>Chapter 8 - Heat and Thermodynamics>EVALUATION>Q III
Explain the second law of thermodynamics in terms of entropy.
HARD
11th Tamil Nadu Board
IMPORTANT
Physics Standard 11 Vol II>Chapter 8 - Heat and Thermodynamics>EVALUATION>Q III
Explain in detail the working of a refrigerator.
EASY
11th Tamil Nadu Board
IMPORTANT
Physics Standard 11 Vol II>Chapter 8 - Heat and Thermodynamics>EVALUATION>Q IV
Calculate the number of moles of air in the inflated balloon at room temperature as shown in the figure.
Question Image
The radius of the balloon is 10 cm, temperature is 27° C and the pressure inside the balloon is 180 kPa.
MEDIUM
11th Tamil Nadu Board
IMPORTANT
Physics Standard 11 Vol II>Chapter 8 - Heat and Thermodynamics>EVALUATION>Q IV
In the planet Mars, the average temperature is around -53°C and atmospheric pressure is 0.9 kPa. Calculate the number of moles of the molecules in unit volume in the planet Mars? Is this greater than that in earth? Gas constant R=8.314 J·K-1·mol-1, atmospheric pressure on earth is 1×105 Pa, temperature on earth =27° C
MEDIUM
11th Tamil Nadu Board
IMPORTANT
Physics Standard 11 Vol II>Chapter 8 - Heat and Thermodynamics>EVALUATION>Q IV
An insulated container of gas has two chambers separated by an insulating partition. One of the chambers has volume V1 and contains ideal gas at pressure P1 and temperature T1. The other chamber has volume V2 and contains ideal gas at pressure P2 and temperature T2. If the partition is removed without doing any work on the gases, calculate the final equilibrium temperature of the container.