Chemistry-
General
Easy

Question

2molesof COaremixedwith 1moleofO2ina containerof1l.Theycompletelytoform2moles ofCO2.Ifthe pressurein the vesselchanges from70atmto40atm,whatwill bethevalue of DU in kJat500K(The gasesdeviateappreciably from idealbehaviour.) 2CO+O2→2CO2;DH=-560kJ/mol, 1Latm=0.1kJ For theprocessH2O(l)(1 bar,373K)→H2O(g) (1bar,373K),thecorrect setofthermodynamic parametersis-

  1. DG=0,DS=+ve    
  2. DG=0,DS=ve    
  3. DG=+ve,DS=0    
  4. DG=ve,DS=+ve    

The correct answer is: DG=0,DS=+ve

Related Questions to study

General
chemistry-

The conversion A to B is carried out bthe followinpath:
Given: DS(A→C) =50e.u.,DS(C→D) =30 e.u., DS(B→D) =20e.u. Where.u.ientropunitheDS(A→B) is

The conversion A to B is carried out bthe followinpath:
Given: DS(A→C) =50e.u.,DS(C→D) =30 e.u., DS(B→D) =20e.u. Where.u.ientropunitheDS(A→B) is

chemistry-General
General
physics-

Three balls are dropped from the top of a building with equal speed at different angles. When the balls strike ground their velocities are v subscript 1 end subscript comma v blank subscript 2 end subscript and v subscript 3 end subscript respectively, then

Three balls are dropped from the top of a building with equal speed at different angles. When the balls strike ground their velocities are v subscript 1 end subscript comma v blank subscript 2 end subscript and v subscript 3 end subscript respectively, then

physics-General
General
Maths-

When does the current flow through the following circuit ?

When does the current flow through the following circuit ?

Maths-General
parallel
General
Maths-

The following circuit when expressed in symbolic form of logic is :

The following circuit when expressed in symbolic form of logic is :

Maths-General
General
chemistry-

Onemoleofanon-idealgasundergoesachange ofstate(2.0atm,3.0L,95K)→(4.0atm,5.0L,245 K)with achangein internalenergy,DU=30.0L atm.Thechangeinenthalpy(DH)oftheprocessinLatmis-

Onemoleofanon-idealgasundergoesachange ofstate(2.0atm,3.0L,95K)→(4.0atm,5.0L,245 K)with achangein internalenergy,DU=30.0L atm.Thechangeinenthalpy(DH)oftheprocessinLatmis-

chemistry-General
General
chemistry-

Inconversion oflime-stonetolime,CaCO3(s)→CaO(s)+CO2(g)thevalues ofDandDare+179.1kJmol–1and160.2J/Krespectivelyat298Kand1bar.AssumingthatDHºandDSºdonotchange withtemperature,temperatureabovewhich conversionoflimestonetolimewillbespontaneous is-

Inconversion oflime-stonetolime,CaCO3(s)→CaO(s)+CO2(g)thevalues ofDandDare+179.1kJmol–1and160.2J/Krespectivelyat298Kand1bar.AssumingthatDHºandDSºdonotchange withtemperature,temperatureabovewhich conversionoflimestonetolimewillbespontaneous is-

chemistry-General
parallel
General
chemistry-

Consider threaction:N2+ 3H2→2NH3carried out at constantemperaturanpressureIDH anDarthenthalpy aninternaenergy changes for threaction, which of thfollowing expressions is true ?

Consider threaction:N2+ 3H2→2NH3carried out at constantemperaturanpressureIDH anDarthenthalpy aninternaenergy changes for threaction, which of thfollowing expressions is true ?

chemistry-General
General
Physics-

Consider a disc rotating in the horizontal plane with a constant angular speed omega about its centre O. The disc has a shaded region on one side of the diameter and an unshanded region on the other side as shown in the figure. When the disc is in the orientation as shown, two pebbles P and Q are simultaneously projected at an angle towards R. The velocity of projection is in the y minus z plane and is same for both pebbles with respect to the disc. Assume that i) they land back on the disc before the disc has completed fraction numerator 1 over denominator 8 end fraction rotation. ii) their range is less than half the disc radius, and (iii) omega remains constant throughout. Then

Consider a disc rotating in the horizontal plane with a constant angular speed omega about its centre O. The disc has a shaded region on one side of the diameter and an unshanded region on the other side as shown in the figure. When the disc is in the orientation as shown, two pebbles P and Q are simultaneously projected at an angle towards R. The velocity of projection is in the y minus z plane and is same for both pebbles with respect to the disc. Assume that i) they land back on the disc before the disc has completed fraction numerator 1 over denominator 8 end fraction rotation. ii) their range is less than half the disc radius, and (iii) omega remains constant throughout. Then

Physics-General
General
physics-

From an inclined plane two particles are projected with same speed at same angle theta, one up and other down the plane as shown in figure. Which of the following statements left parenthesis s right parenthesis is/are correct?

From an inclined plane two particles are projected with same speed at same angle theta, one up and other down the plane as shown in figure. Which of the following statements left parenthesis s right parenthesis is/are correct?

physics-General
parallel
General
maths-

If r greater than 1 then fraction numerator blank to the power of n end exponent p subscript r end subscript over denominator blank to the power of n end exponent C subscript r end subscript end fraction is

If r greater than 1 then fraction numerator blank to the power of n end exponent p subscript r end subscript over denominator blank to the power of n end exponent C subscript r end subscript end fraction is

maths-General
General
chemistry-

Thfree energy changfor thfollowinreactions aregivenbelow-C2H2(g)+fraction numerator 5 over denominator 2 end fractionO2(g)→2CO2(g)+H2O(l);DG°=–1234KJC(s)+O2(g)→CO2(g);DG°=–394KJ H2(g)+fraction numerator 1 over denominator 2 end fractionO2(g)→H2O(l);DG°=237KJWhatisthestandardfreeenergychangeforthe reactionH2(g)+2C(s)→C2H2(g)-

Thfree energy changfor thfollowinreactions aregivenbelow-C2H2(g)+fraction numerator 5 over denominator 2 end fractionO2(g)→2CO2(g)+H2O(l);DG°=–1234KJC(s)+O2(g)→CO2(g);DG°=–394KJ H2(g)+fraction numerator 1 over denominator 2 end fractionO2(g)→H2O(l);DG°=237KJWhatisthestandardfreeenergychangeforthe reactionH2(g)+2C(s)→C2H2(g)-

chemistry-General
General
chemistry-

ThvaluoDH–Dfor thfollowinreaction at 27°C will be,2NH3(g)→N2(g)+3H2(g)

ThvaluoDH–Dfor thfollowinreaction at 27°C will be,2NH3(g)→N2(g)+3H2(g)

chemistry-General
parallel
General
chemistry-

Ia298K thbonenergieof C–H,CC,C=and Hbondarrespectively 414,347,615and 435KJmol1,thevalueofenthalpy changfotheraction H2C=CH2(g)+H2(g)→CH3CH3(g)at298 K wilbe-

Ia298K thbonenergieof C–H,CC,C=and Hbondarrespectively 414,347,615and 435KJmol1,thevalueofenthalpy changfotheraction H2C=CH2(g)+H2(g)→CH3CH3(g)at298 K wilbe-

chemistry-General
General
maths-

If C left parenthesis 2 n comma 3 right parenthesis colon C left parenthesis n comma 2 right parenthesis equals 12 colon 1 then n=

If C left parenthesis 2 n comma 3 right parenthesis colon C left parenthesis n comma 2 right parenthesis equals 12 colon 1 then n=

maths-General
General
maths-

There were two women participating in a chess tournament Every participant played two games with the other participants the number of games that the men played between themselves proved to exceed by 66 the number of games that the men played with the women The number of participants is

There were two women participating in a chess tournament Every participant played two games with the other participants the number of games that the men played between themselves proved to exceed by 66 the number of games that the men played with the women The number of participants is

maths-General
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.