MEDIUM
11th Odisha Board
IMPORTANT
Earn 100

The final volume of a system is equal to the initial volume in a certain process. Is the work done by the system necessarily zero? Is it necessarily nonzero?

Important Questions on Thermodynamics

MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 21
The outer surface of a cylinder containing a gas is rubbed vigorously by a polishing machine. The cylinder and its gas become warm. Is the energy transferred to the gas heat or work?
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 22
When ice melts at 0 °C, its volume decreases. Is the internal energy change greater than, less than, or equal to the heat added?
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 23
A volume of 224 litres of an ideal gas at temperature of 27°C And pressure 1 atm. Is compressed isothermally to a volume of. 56 Litres. Calculate the final pressure and work done on the gas.
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 1
Calculate the final pressure and work done on it. Where 800CC of an ideal gas at N.T.P is compressed adiabatically to 200 CC.. (Given γ=1.4)
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 2
A tyre pumped to a pressure of 3 atm Suddenly tyre bursts. Calculate the fall in temperature if the air before expansion is 27°C (Given γ=1.4)
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 3
A gram molecule of a gas at 127°C expands, isothermally, until its volume is doubled. Find the amount of work done and the heat absorbed.
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 4
1 kg of water is converted to steam at 100°C At a constant pressure of 1.01x105 Pa. Calculate the change in internal energy (density of water =103 kg/m3, Density of steam =0.598 kg/m3, Lθ=2.26×106 J/kg)
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 17 - Thermodynamics>MODEI. QUESTIONS>Q 5
Calculate the work done (in joule) when 1 mole of a perfect gas is compressed adiabatically. The initial pressure and volume of the gas are 105 N m-2 and 6 litre respectively. The final volume of the gas is 2 litre. Molar specific heat of the gas at constant volume is 3R/2. [35/3=6.19]