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A body of mass 1 kg is mafe to oscillate on a spring of force constant 16 N/m. Calculate (a) Angular frequency, (b) Frequency of vibrations.
Concept: Periodic and Oscillatory Motion
During refrigeration cycle, heat is rejected by the refrigerant in the ______.
Concept: Refrigerators and Heat Pumps
Answer in brief:
A gas contained in a cylinder surrounded by a thick layer of insulating material is quickly compressed has work been done?
Concept: Heat Engine
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.
Concept: Thermodynamics
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.
Concept: Thermodynamics
A system releases 130 kJ of heat while 109 kJ of work is done on the system. Calculate the change in internal energy.
Concept: Heat, Internal Energy and Work
An ideal monoatomic gas is adiabatically compressed so that its final temperature is twice its initial temperature. What is the ratio of the final pressure to its initial pressure?
Concept: Chemical Thermodynamics and Energetic >> First Law of Thermodynamics
Which of the following is correct, when the energy is transferred to a system from its environment?
Concept: Heat, Internal Energy and Work
Which of the following system freely allows the exchange of energy and matter with its environment?
Concept: Heat, Internal Energy and Work
For work done to be reversible, the process should be ______
Concept: Thermodynamic Process
The second law of thermodynamics deals with the transfer of ______.
Concept: Second Law of Thermodynamics
When two objects are said to be in thermal equilibrium?
Concept: Thermal Equilibrium
What is the energy associated with the random, disordered motion of the molecules of a system called as?
Concept: Heat, Internal Energy and Work
A group of objects that can form a unit which may have the ability to exchange energy with its surrounding is called what?
Concept: Thermodynamics
Draw a p-V diagram of the reversible process.
Concept: Thermodynamic Process
Draw a p-V diagram showing negative work with varying pressure.
Concept: Thermodynamic Process
State the assumptions made for thermodynamic processes.
Concept: Thermodynamic Process
Differentiate between the reversible and irreversible processes.
Concept: Thermodynamic Process
An ideal gas of volume 2 L is adiabatically compressed to (1/10)th of its initial volume. Its initial pressure is 1.01 x 105 Pa, calculate the final pressure. (Given 𝛾 = 1.4)
Concept: Thermodynamic Process
Explain graphically (i) positive work with varying pressure, (ii) negative work with varying pressure, and (iii) positive work at constant pressure.
Concept: Thermodynamic Process
