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

Question

For gaseous reactions, if Δ H is the change in enthalpy and Δ U that in internal energy, then (A) Δ H is always greater operatornamethan Δ U (B) Δ H is always less than Δ U (C) Δ H< Δ U only if the number of mole of the products is less than that of the reactants (D) Δ U< Δ H only if the number of mole of the reactants is less than that of the products

Tardigrade Admin · Accepted Answer

Correct answer is (c) Δ H< Δ U only if the number of mole of the products is less than that of the reactantsCorrect answer is (d) Δ U< Δ H only if the number of mole of the reactants is less than that of the products

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

$Δ H$ is always greater $than Δ U$

$Δ H$ is always less than $Δ U$

$Δ H < Δ U$ only if the number of mole of the products is less than that of the reactants

$Δ U < Δ H$ only if the number of mole of the reactants is less than that of the products

Correct answer is (c) $Δ H < Δ U$ only if the number of mole of the products is less than that of the reactants Correct answer is (d) $Δ U < Δ H$ only if the number of mole of the reactants is less than that of the products

Q. For gaseous reactions, if ΔH is the change in enthalpy and ΔU that in internal energy, then

ΔH is always greater thanΔU

ΔH is always less than ΔU

ΔH<ΔU only if the number of mole of the products is less than that of the reactants

ΔU<ΔH only if the number of mole of the reactants is less than that of the products