For free expansion of a gas which of the...

For free expansion of a gas which of the following is true?

A

`Q = W gt 0` and `Delta E_("int") =0`

B

`Q=0, W gt 0` and `Delta E_("int") = - W`

C

`W = 0 , Q gt 0` and `Delta E_("int") = Q`

D

`W = 0 , Q lt ` and `DeltaE_("int") = 0`

Text Solution

Verified by Experts

The correct Answer is:

A

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Which of the following is not true?

A

Aluminium liberates hydrogen on treating with a base

B

Aluminium is used in the preparation of duralumin

C

aluminium is extracted by the electrolysis of alumina in presence of cryolite

D

Aluminium is a strong oxidising agent

Which of the following is not true?

A

Aluminium liberates hydrogen on treating with a base

B

Aluminium is used in the preparation of duralumin

C

aluminium is extracted by the electrolysis of alumina in presence of cryolite

D

Aluminium is a strong oxidising agent

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