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Thermodynamics question

2025 · 2 Apr · Shift 1 · Q13
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Thermodynamics question

2025 · 2 Apr · Shift 1 · Q13

JEE MainChemistryThermodynamicsMCQ+4 / −1
JEE Main 2025 (Online) 2nd April Morning Shift Chemistry - Thermodynamics Question 14 English Two vessels A and B are connected via stopcock. The vessel A is filled with a gas at a certain pressure. The entire assembly is immersed in water and is allowed to come to thermal equilibrium with water. After opening the stopcock the gas from vessel A expands into vessel B and no change in temperature is observed in the thermometer. Which of the following statement is true ?
  1. A
    dqeq0\mathrm{dq} eq 0dqeq0
  2. B
    The pressure in the vessel B before opening the stopcock is zero
  3. C
    dweq0\mathrm{dw} eq 0dweq0
  4. D
    dUeq0\mathrm{dU} eq 0dUeq0
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