During an isothermal expansion of an ideal gas which of the following is true for the gas?
1.enthalpy decreases
2.entropy decreases
3.enthalpy remains constant
4.entropy remains constant
Posted Date:-2021-03-07 09:14:20
For a spontaneous process, the change in Gibbs function is equal to the
1.the heat content of the system
2.entropy change of the system
3.work of expansion
4.useful work
Posted Date:-2021-03-07 09:14:20
The term R ln KPo is equal to
1.– ∆G
2.– ∆Go
3.– ∆G/T
4.– ∆Go/T
Posted Date:-2021-03-07 09:14:20
Which of the following statements regarding entropy is not true?
1.S (monoclinic) > S (rhombic)
2.C (diamond) > C (graphite)
3.H2O(g) > H2O(l)
4.O3(g) > O2(g)
Posted Date:-2021-03-07 09:14:20
If the standard free energy change for a reaction is 1.546 kJ/mol at 500oC then the value of the standard equilibrium constant for the reaction is
1.antilog (0.105)
2.antilog (-0.105)
3.antilog (0.241)
4.antilog (-0.241)
Posted Date:-2021-03-07 09:14:20
If one gram of kerosene liberates 46.0 kJ of heat when it is burned, to what temperature can 0.25g of kerosene raise the temperature of 75 cm3 of water at 25oC?
1.61.6oC
2.46.0oC
3.66.1oC
4.64.0oC
Posted Date:-2021-03-07 09:14:20
The standard free energy of formation of NO(g) is
1.84.8 kJ/mol
2.86.8 kJ/mol
3.88.8 kJ/mol
4.90.8 kJ/mol
Posted Date:-2021-03-07 09:14:20
Which of the following is a state function?
1.q
2.w
3. qrev/T
4.qw
Posted Date:-2021-03-07 09:14:20
Which of the following is an extensive property?
1.surface area
2.pressure
3.molar volume
4.concentration
Posted Date:-2021-03-07 09:14:20
Which of the following is expressed to have the largest bond dissociation enthalpy?
1.HF
2.HCl
3.HBr
4.HI
Posted Date:-2021-03-07 09:14:20