Assertion - Addition of Q and w gives - U-Reason - Addition of two path functions cannot give state function-

By first law of thermodynamics, Δ U = Q + w (work done on the system ) where, nbsp; Δ U is change in internal energy Q is heat transfered nbsp; w is workdon ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Chemistry

System, Surroundings, Intensive, Extensive Properties

Assertion : A...

Question

Assertion : Addition of Q and w gives $Δ U$ .
Reason : Addition of two path functions cannot give state function.

Both assertion and reason are true and reason is the correct explanation of assertion

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

Both assertion and reason are true but reason is not the correct explanation of assertion

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

Assertion is true but reason is false

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

Both assertion and reason are false

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

Open in App

Solution

The correct option is C Assertion is true but reason is false
By first law of thermodynamics,
$Δ U = Q + w$ (work done on the system )
where,
$Δ U$ is change in internal energy
Q is heat transfered
w is workdone
Internal energy is a state function but Q and w are path functions.

Hence, option (c) is correct.

Suggest Corrections

Similar questions

Q. Assertion :Between two thermodynamic states, the value of

(Q - W)

is constant for any process. Reason:

Q

and

W

are path functions.

Q. Assertion :The addition of

B r_{2}

to 1-butene gives two optical isomers. Reason: The product contains one asymmetric carbon.

Q. Assertion :Work and internal energy are not state functions. Reason: The sum of

q + w

is state function.

Q. Assertion :Addition of

H C l

3, 3, 3

-trifuoro-

1

-propene gives

1

-chloro-

3, 3, 3

-trifluoro propane as major product. Reason: Addition follow Markownikoff 's rule.

Q. Assertion :Glucose form hydrogensulphite addition product with

N a H {S O}_{3}

. Reason: Glucose gives all the reactions of aldehydic group.

Join BYJU'S Learning Program

Assertion : Addition of Q and w gives ΔU. Reason : Addition of two path functions cannot give state function.

Assertion : Addition of Q and w gives $Δ U$ .
Reason : Addition of two path functions cannot give state function.