Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET 2020
Exam
NEET
Year
2020
Subject
Physics
Chapter
Thermodynamics

NEET 2020 · Physics · Thermodynamics

Two cylinders A and B of equal capacity are connected to each other...

Two cylinders A and B of equal capacity are connected to each other via a stop cock. A contains an ideal gas at standard temperature and pressure. B is completely evacuated. The entire system is thermally insulated. The stop cock is suddenly opened. The process is:

Options

  1. Aadiabatic
  2. Bisochoric
  3. Cisobaric
  4. Disothermal

Correct answer

A. adiabatic

Step-by-step solution

Free expansion i.e. expansion against vacuum is adiabatic in nature for all type of gases. It should be noted that temperature final temperature is equal to initial temperature for adiabatic process.
Practice Thermodynamics on Quantrex Academy →

More from Thermodynamics

The work done by an ideal gas during closed cycle 1arrow 2 arrow 3 arrow 4 arrow 1 as… MHT CET Medical 2026Which of the following statements is NOT CORRECT? In an isothermal process, a. there is… MHT CET Medical 2026Let η_1 be the efficiency of a Carnot engine at T_H = 547^ ^ ∘ C and T_C = 247^ ^ ∘ C… MHT CET Medical 2026Identify the INCORRECT statement for isobaric process. MHT CET Medical 2026A gas for which γ = 5 / 3 \ (γ = C_p / C_v ) is heated at constant pressure. The… MHT CET Medical 2026A mono-atomic ideal gas, initially at temperature T_1 is enclosed in a cylinder fitted… MHT CET Medical 2026A gas for which γ is 3/2 is heated at constant pressure. The percentage of heat supplied… MHT CET Medical 2026One mole of an ideal gas in initial state A undergoes a cyclic process ABCA, as shown in… MHT CET Medical 2026 Full Thermodynamics list All NEET PYQs