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Chemistry-

General

Easy

Question

1st law does not tell about

Law of conservation of energy
Work done whether +Ve (or) - Ve
Feasibility of a process
$∆$ E at const T

The correct answer is: Feasibility of a process

Related Questions to study

Heat of reaction ( $increment$ H) is given by

Heat of reaction ( $increment$ H) is given by

chemistry-General

Which of the following is not correct

Which of the following is not correct

chemistry-General

$M g S O subscript 4 left parenthesis s right parenthesis end subscript plus a q times rightwards arrow M g S O subscript 4 left parenthesis a q right parenthesis end subscript capital delta H equals negative 84 K blank text cals end text$ , $increment$ H of the reaction is known as

$M g S O subscript 4 left parenthesis s right parenthesis end subscript plus a q times rightwards arrow M g S O subscript 4 left parenthesis a q right parenthesis end subscript capital delta H equals negative 84 K blank text cals end text$ , $increment$ H of the reaction is known as

chemistry-General

parallel

For the following reaction $H subscript left parenthesis a q right parenthesis end subscript superscript plus end superscript plus O H subscript left parenthesis a q right parenthesis end subscript superscript minus end superscript rightwards arrow H subscript 2 end subscript O subscript left parenthesis 1 right parenthesis end subscript semicolon capital delta H equals negative Q comma$ Where $increment$ H represents

For the following reaction $H subscript left parenthesis a q right parenthesis end subscript superscript plus end superscript plus O H subscript left parenthesis a q right parenthesis end subscript superscript minus end superscript rightwards arrow H subscript 2 end subscript O subscript left parenthesis 1 right parenthesis end subscript semicolon capital delta H equals negative Q comma$ Where $increment$ H represents

chemistry-General

$C subscript text graphite end text end subscript plus O subscript 2 left parenthesis g right parenthesis end subscript rightwards arrow C O subscript 2 left parenthesis g right parenthesis end subscript semicolon capital delta H equals negative 393.5 K J$ $increment$ H of the above reaction cannot be

$C subscript text graphite end text end subscript plus O subscript 2 left parenthesis g right parenthesis end subscript rightwards arrow C O subscript 2 left parenthesis g right parenthesis end subscript semicolon capital delta H equals negative 393.5 K J$ $increment$ H of the above reaction cannot be

chemistry-General

The enthalpy of the reaction $H subscript 2 left parenthesis g right parenthesis end subscript plus fraction numerator 1 over denominator 2 end fraction O subscript 2 left parenthesis g right parenthesis end subscript rightwards arrow H subscript 2 end subscript O subscript left parenthesis g right parenthesis end subscript$ is $increment$ H₁ and that of $H subscript 2 left parenthesis g right parenthesis end subscript plus fraction numerator 1 over denominator 2 end fraction O subscript 2 left parenthesis g right parenthesis end subscript rightwards arrow H subscript 2 end subscript O subscript left parenthesis l right parenthesis end subscript$ is $increment$ H₂ Then

The enthalpy of the reaction $H subscript 2 left parenthesis g right parenthesis end subscript plus fraction numerator 1 over denominator 2 end fraction O subscript 2 left parenthesis g right parenthesis end subscript rightwards arrow H subscript 2 end subscript O subscript left parenthesis g right parenthesis end subscript$ is $increment$ H₁ and that of $H subscript 2 left parenthesis g right parenthesis end subscript plus fraction numerator 1 over denominator 2 end fraction O subscript 2 left parenthesis g right parenthesis end subscript rightwards arrow H subscript 2 end subscript O subscript left parenthesis l right parenthesis end subscript$ is $increment$ H₂ Then

chemistry-General

parallel

Identify the reaction in which the heat liberated corresponds to the heat of formation ( $increment$ H) :

Identify the reaction in which the heat liberated corresponds to the heat of formation ( $increment$ H) :

chemistry-General

For the gaseous reaction involving the complete combustion of isobutane

For the gaseous reaction involving the complete combustion of isobutane

chemistry-General

In an adiabatic expansion of ideal gas :

In an adiabatic expansion of ideal gas :

chemistry-General

parallel

A system absorbs 'xJ' heat and does "yJ" work Its $increment$ E is +Ve when

A system absorbs 'xJ' heat and does "yJ" work Its $increment$ E is +Ve when

chemistry-General

According to IUPAC conventions, which one of the following is not correct ?

According to IUPAC conventions, which one of the following is not correct ?

chemistry-General

For $N subscript 2 end subscript plus 3 H subscript 2 end subscript rightwards arrow 2 N H subscript 3 end subscript$ ,enthalpy and internal energy changes respectively are, $increment$ H & $increment$ U then

For $N subscript 2 end subscript plus 3 H subscript 2 end subscript rightwards arrow 2 N H subscript 3 end subscript$ ,enthalpy and internal energy changes respectively are, $increment$ H & $increment$ U then

chemistry-General

parallel

For which of the following reaction $ΔH equals ΔE plus 2 RT$

For which of the following reaction $ΔH equals ΔE plus 2 RT$

chemistry-General

Which of the following holds good to the laws of thermodynamics for the reaction $C subscript 2 end subscript H subscript 4 end subscript left parenthesis g right parenthesis plus 3 O subscript 2 end subscript left parenthesis g right parenthesis rightwards arrow 2 C O subscript 2 end subscript left parenthesis g right parenthesis plus 2 H subscript 2 end subscript O left parenthesis l right parenthesis$

Which of the following holds good to the laws of thermodynamics for the reaction $C subscript 2 end subscript H subscript 4 end subscript left parenthesis g right parenthesis plus 3 O subscript 2 end subscript left parenthesis g right parenthesis rightwards arrow 2 C O subscript 2 end subscript left parenthesis g right parenthesis plus 2 H subscript 2 end subscript O left parenthesis l right parenthesis$

chemistry-General

When a reaction is conducted in an open vessel, the heat of reaction is represented as

When a reaction is conducted in an open vessel, the heat of reaction is represented as

chemistry-General

parallel

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