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प्रश्न
Give an example of some familiar process in which no heat is added to or removed from a system, but the temperature of the system changes.
उत्तर
- Hot water in a container cools after some time. Its temperature goes on decreasing with time, and after some time, it attains room temperature.
- Adiabatic compression is the process in which no heat is transferred to or from the system but the temperature of the system changes. When we compress gas in an adiabatic process, the volume of the gas will decrease, and the temperature of the gas rises as it is compressed, which we have seen the warming of a bicycle pump. Conversely, the temperature falls when the gas expands but the heat remains constant throughout the process.
संबंधित प्रश्न
A gas contained in a cylinder fitted with a frictionless piston expands against a constant external pressure of 1 atm from a volume of 5 liters to a volume of 10 liters. In doing so it absorbs 400J of thermal energy from its surroundings. Determine the change in the internal energy of the system.
A hypothetical thermodynamic cycle is shown in the figure. Calculate the work done in 25 cycles.
The science of measuring temperatures is called?
A group of objects that can form a unit which may have the ability to exchange energy with its surrounding is called what?
On what basis a thermodynamic system can be classified?
Classify and explain the thermodynamic system.
Identify the state variables given here?
What is a thermodynamic system? Give examples.
What are the different types of thermodynamic systems?
What is meant by ‘thermal equilibrium’?
What is mean by state variable? Give example.
What are intensive and extensive variables? Give examples.
What is an equation of state? Give an example.
Discuss the mechanical equilibrium.
Discuss the chemical equilibrium.
If the piston of a container is pushed fast inward. Will the ideal gas equation be valid in the intermediate stage? If not, why?
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.
Which of the following statements is correct for any thermodynamic system?
A gas in a closed container is heated with 10 J of energy, causing the lid of the container to rise 2 m with 3 N of force. What is the total change in energy of the system?
What are surroundings in thermodynamics?
