Assertion :The difference between $Δ H$ and $Δ U$ is not significant for systems consisting of only solids and /or liquids. Reason: Solids and liquids do not suffer any significant volume changes upon heating.

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

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

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

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

Both Assertion and Reason are incorrect

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

Open in App

Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
For solids and liquids, volume changes are insignificant.
$∴ Δ V = 0$
$∴ Δ H = Δ U + P Δ V ⟹ Δ H = Δ U$
Therefore, the difference between $Δ H$ and $Δ U$ is almost negligible for solids and liquids.

Suggest Corrections

Similar questions

H_{2}

H e

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

H_{2}

H e

180^{\circ}

i = 45^{\circ}

{2n}^{2}

Assertion: Be and Al have similar properties.

Reason: $B e^{2 +}$ and $A l^{3 +}$ have nearly the same charge/volume ratios and similar polarising power.

ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

Join BYJU'S Learning Program