JEE Main · PhysicsMedium

$An ideal gas expands isothermally from volume V to 3 V . If the initial pressure is P, what is the final pressure?$

A. $P$
B. $P /2$
C. $P /3$
D. $3 P$

Show correct answer & step-by-step solution

Correct answer: C — $P /3$

Solution

Since T is constant, P_{1} V_{1} = P_{2} V_{2} . Thus, P \times V = P_{2} \times 3 V, which implies P_{2} = P /3 .

Attempt this question & track your score

Sign up free to answer, get instant scoring, and let SolveGini track which Physics topics you need to revise.

Attempt & Track Free →

More Thermodynamics practice questions

$Which of the following thermodynamic variables is a state function?$
$For an adiabatic process, which of the following relations is correct?$
$The first law of thermodynamics is a statement of the law of conservation of:$
$What is the change in internal energy of an ideal gas during an isothermal process?$
$If a system undergoes a process where the volume remains constant, the work done by the system is:$
$An ideal gas undergoes a process where its pressure P is proportional to its volume V. If the gas expands from volume V0$
$A Carnot engine operates between temperatures 600 K and 300 K. If it absorbs 1000 J of heat from the source, what is the$
$Two moles of an ideal monoatomic gas are heated at constant volume from 300 K to 400 K. What is the change in internal e$
$An ideal gas has a molar heat capacity at constant pressure of 2.5 R. What is the atomicity of the gas?$
$During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its absolute temperature.$
$A monatomic ideal gas undergoes a process where its pressure P is related to its volume V by the equation P = P0 exp(alp$
$A thermally insulated container is divided into two compartments by a movable piston. One side contains n moles of an id$

View all Thermodynamics questions →