Solve

Guides

0

You visited us 0 times! Enjoying our articles? Unlock Full Access!

Question

Enthalpy change equal internal energy change when
all the reactants and products are in solution
reaction is carried out in a closed vessel
number of moles of gaseous reactants and that of products is equal
reaction is carried out at constant pressure

A

all the reactants and products are in solution

B

reaction is carried out in a closed vessel

C

number of moles of gaseous reactants and that of products is equal

D

reaction is carried out at constant pressure

Open in App

Solution

Verified by Toppr

The correct options are
A all the reactants and products are in solution
B reaction is carried out in a closed vessel
C number of moles of gaseous reactants and that of products is equal
As we know,
$Δ H = Δ U + Δ n R T$
when
$Δ n = 0 = n_{P} - n_{R}$
$Δ H = Δ U$
Also, when volume change is negligible, $Δ H = Δ U$

Was this answer helpful?

0

Similar Questions

Q1

Consider the reaction

N_{2} + 3 H_{2} \to 2 N H_{3}

carried out at constant temperature and pressure. If

Δ H

and

Δ E

are the enthalpy and internal energy changes for the reaction, which of the following expression is true?

View Solution

Q2

Consider the reaction:

N_{2} + 3 H_{2} \to 2 N H_{3}

. It is carried out at constant temperature and pressure. If

Δ H

and

Δ U

are the enthalpy and internal energy changes for the reaction respectively, then which of the following expression is true?

View Solution

Q3

Consider the reaction : $N_{2} + 3 H_{2} \to 2 N H_{3}$ carried out at constant temperature and pressure. If $△ H$ and $△ U$ are the enthalpy and internal energy changes for the reaction, which of the following expressions is true?

View Solution

Q4

A first-order reaction is carried out with an initial concentration of

10

mole per litre and

80

% of the reactant changes into the product. Now if the same reaction is carried out with an initial concentration of

5

mol per litre, the percentage of the reactant changing to the product is:

View Solution

Q5

For gaseous reactions, if $Δ H$ is the change in enthalpy & $Δ U$ that in internal energy, then

View Solution