Chemistry

Use the data given to calculate the value of delta G rxn for the reaction at 25C
2C(graphite)+H2(g)--->C2H2(g)

C H2 C2H2
S(J K^-1 mol^-1)| 5.74 |130.68| 201.0
-------------------
delta H(kJ/mol) | 0 | 0 |-226.8

a.-291.4 kj
b.-244.3 Kj
c.-226.8 kj
d.-207.6 Kj
e.-64.6 Kj

  1. 👍 0
  2. 👎 0
  3. 👁 206
asked by Liliy
  1. Tables, spaces, and the like don't do well on the board. You need to find another format that doesn't require spaces or tables.

    1. 👍 0
    2. 👎 0
    posted by DrBob222
  2. Use the data given to calculate the value of delta G rxn for the reaction at 25C
    2C(graphite)+H2(g)--->C2H2(g)

    C______H2_______C2H2___________________5.74| 130.68| 201.0 | S (JK^-1mol^-1)
    _______________________________________
    0 | 0 | -226.8|delta H(KJ/mol)

    a.-291.4 kj
    b.-244.3 Kj
    c.-226.8 kj
    d.-207.6 Kj
    e.-64.6 Kj

    1. 👍 0
    2. 👎 0
    posted by Liliy
  3. Thanks for trying but I don't see an improvement over the previous version.

    1. 👍 0
    2. 👎 0
    posted by DrBob222
  4. I cant figure out how to do a table :(

    Use the data given to calculate the value of delta G rxn for the reaction at 25C
    2C(graphite)+H2(g)--->C2H2(g)


    C= S(J K^-1) => 5.74 and delta H(kJ/mol)=>0

    H2= S(J K^-1)=> 130.68 and delta H (kJ/mol)=>0

    C2H2= S(J K^-1)=> 201.0 and delta H(kJ/mol)=> -226.8

    a.-291.4 kj
    b.-244.3 Kj
    c.-226.8 kj
    d.-207.6 Kj
    e.-64.6 Kj

    1. 👍 0
    2. 👎 0
    posted by Liliy

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    For the reaction described by the chemical equation: 3C2H2(g) -> C6H6(l) .. Delta H rxn = -633.1 kJ/mol a) Calculate the value of Delta S rxn at 25.0 C... b) Calculate Delta G rxn... c) In which direction is the reaction, as

    asked by Katherine on March 9, 2012
  2. Chemistry

    Calculate the DELTA H(rxn), DELTA S(rxn), DELTA S(universe), DELTA G(rxn). For each system below indicate whether DELTA S and DELTA H are positive or negative. Then indicate if the reaction is entropy driven, enthalpy driven or

    asked by Zach on September 19, 2008
  3. chemistry

    At 25 C the following heats of reaction are known: 2CIf (g)+ O2(g) -> CL2O (g) + f2O Delta H rxn= 167.4 kj/mol 2CIf3(g) + 2O2 (g)-> Cl2O(g) + 3F2O(g) Delta H rxn= 341.4 2F2(g) + O2(g) -> 2F2O(g) Delta H rxn= -43.4kj/mol at the

    asked by Court on March 4, 2012
  4. chemistry

    Styrene is produced by catalytic dehydrogenation of ethyl- benzene at high temperature in the presence of superheated steam. (a) Find ÄH°rxn, ÄG °rxn, and ÄS °rxn, given these data at 298 K: (b) At what temperature is the

    asked by Dalton on November 9, 2015
  5. chemistry

    Styrene is produced by catalytic dehydrogenation of ethyl- benzene at high temperature in the presence of superheated steam. (a) Find ÄH°rxn, ÄG °rxn, and ÄS °rxn, given these data at 298 K: (b) At what temperature is the

    asked by Dalton on November 9, 2015
  6. chemistry

    Styrene is produced by catalytic dehydrogenation of ethyl- benzene at high temperature in the presence of superheated steam. (a) Find ÄH°rxn, ÄG °rxn, and ÄS °rxn, given these data at 298 K: (b) At what temperature is the

    asked by Dalton on November 9, 2015
  7. Chem

    RXN #1: H2 (g) + O2 (g) --> H2O2 (l) ; delta-H =? Calculate the enthalpy change (delta-H1) for the reaction above (RXN #1) using the information below and Hess' Law. RXN A: H2O2 (l) --> H2O (l) + 1/2 O2 (g); delta-H=-98.0 kJ/mol

    asked by Ally on July 12, 2011
  8. chemistry

    Styrene is produced by catalytic dehydrogenation of ethyl- benzene at high temperature in the presence of superheated steam. (a) Find ÄH°rxn, ÄG °rxn, and ÄS °rxn, given these data at 298 K: (b) At what temperature is the

    asked by Dalton on November 8, 2015
  9. CHEMISTRY!!!!!!!!!!

    Styrene is produced by catalytic dehydrogenation of ethyl- benzene at high temperature in the presence of superheated steam. Given the following data, Ethylbenzene, C6H5--CH2CH3 : delta Ht = -12.5 kJ/mol, delta Gt = 119.7 kJ/mol

    asked by Judith on November 10, 2015
  10. Chemistry

    Styrene is produced by catalytic dehydrogenation of ethyl- benzene at high temperature in the presence of superheated steam. Given the following data, Ethylbenzene, C6H5--CH2CH3 : delta Ht = -12.5 kJ/mol, delta Gt = 119.7 kJ/mol

    asked by Judith on November 10, 2015
  11. Chemistry

    The following reaction has the following standard thermodynamic parameters: Reaction: C(g) + D(g)----> E(g) Delta H rxn=-26.1kJ/mol and Delta S rxn=-69.8J/(mol*K). Calculate the temperature at which the reaction becomes

    asked by AAdd on March 21, 2014

More Similar Questions