You visited us 2 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Chemistry

Work Done in Reversible Adiabatic Process

Assertion :Th...

Question

Assertion :The heat absorbed during isothermal expansion of an ideal gas gainst vacuum is zeor. Reason: In isothermal process, change in internal energy is always zero, irrespective of ideal or real gas.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Assertion is correct but Reason is incorrect

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Assertion is incorrect but Reason is correct

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C Assertion is correct but Reason is incorrect
During isothermal expansion against vacuum
$W = 0$ & $Δ E = 0 ∴ q = 0$

Suggest Corrections

Similar questions

Assertion (A) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Assertion :- The heat absorbed during the isothermal expansion of an ideal gas against vacuum is zero

reason :- The volume occupied by the molecules of an ideal gas is zero.

Answer says both the statements are correct but reason doesn't explain the assertion.

i get the Assertion part (as ∆U = 0 , so q=P∆V and in vacuum P = 0) but how come the reason is true?

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

Q. Assertion: The impurities such as

{SiO}_{2}

present in iron ore is removed by

{CaCO}_{3}

.

Reason:

CaO

formed by decomposition of

{CaCO}_{3}

reacts with

{SiO}_{2}

to form slag.

Join BYJU'S Learning Program

Assertion :The heat absorbed during isothermal expansion of an ideal gas gainst vacuum is zeor. Reason: In isothermal process, change in internal energy is always zero, irrespective of ideal or real gas.

The correct option is C Assertion is correct but Reason is incorrectDuring isothermal expansion against vacuumW=0 & ΔE=0∴q=0

The correct option is C Assertion is correct but Reason is incorrect
During isothermal expansion against vacuum
$W = 0$ & $Δ E = 0 ∴ q = 0$