Home
Class 11
CHEMISTRY
What is the melting point of benzene if ...

What is the melting point of benzene if `Delta H_("fusion") = 9.95 kJ//mol and Delta S_("fusion") = 35.7 J//K- mol`?

A

`278.7^(@)C`

B

`278.7^(@)K`

C

300 K

D

298 K

Text Solution

Verified by Experts

The correct Answer is:
B
at M.P. `DeltaS_("fusion")=(DeltaH_("fusion"))/(T)`
`implies" "T=(DeltaH)/(DeltaS)=(9.95 xx1000)/(35.7)=278.7 K`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    NARENDRA AWASTHI|Exercise Level 1 (Q.1 To Q.30)|6 Videos

  • THERMODYNAMICS

    NARENDRA AWASTHI|Exercise Level 1 (Q.31 To Q.60)|2 Videos

  • STOICHIOMETRY

    NARENDRA AWASTHI|Exercise Level 3 - Subjective Problems|20 Videos

Similar Questions

Explore conceptually related problems

Combustion of sucrose is used by aerobic organisms for providing energy for the life substaining process. If all the capturing from the reaction is done through electrical process (non P-V work) then calculate maximum available energy which can be captured by combustion of 34.2 gm of sucrose Given : Delta H_("sucrose") = -6000 kJ mol^(-1) , Delta S_("combustion") = 180 J// K mol and body temperature is 300 K.

The temperature of K at which Delta G =0 for a given reaction with Delta H= -20.5 kJ mol^(-1) and Delta S =- 50.0 JK^(-1)mol^(-1)

Liquid water freezes at 273K under external pressure of 1 atm. The process is at equilibrium H_(2)O (l) hArr H_(2)O (s) at 273 K & 1 atm. However it was required to calculate the thermodynamic parameters of the fusion process occuring at same pressure & different temperature.Using the following data, answer the question that follow. d_("ice") = 0.9 gm/cc, d_(H_(2)O(l)) = 1 gm//c, C_(P) [H_(2)O(s))] = 36.4 JK^(-1) mol^(-1) C_(P) [H_(2)O(l)] = 75.3 JK^(-1) mol^(-1), Delta H_("fusion") = 6008.2 J mol^(-1) '' DeltaS_("fusion") '' at 263 K & 1 atm will be

Liquid water freezes at 273K under external pressure of 1 atm. The process is at equilibrium H_(2)O (l) hArr H_(2)O (s) at 273 K & 1 atm. However it was required to calculate the thermodynamic parameters of the fusion process occuring at same pressure & different temperature.Using the following data, answer the question that follow. d_("ice") = 0.9 gm/cc, d_(H_(2)O(l)) = 1 gm//c, C_(P) [H_(2)O(s))] = 36.4 JK^(-1) mol^(-1) C_(P) [H_(2)O(l)] = 75.3 JK^(-1) mol^(-1), Delta H_("fusion") = 6008.2 J mol^(-1) The value of '' Delta H_("fusion") '' at 263K & 1 atm will be

Give the following information, calculate the lattice enthalpy of the sodium chloride lattice: Delta ("atomisation Na") = +107 kJ mol^(-1) " " DeltaH (1^(st) "ionisation Na") = + 496 kJ mol^(-1) Delta H ("bond dissociation " CI_(2)) = +242 kJ mol^(-1) " " Delta (1^(st) "electron affinity CI") =-349 kJ mol^(-1) DeltaH( NaCI) =-411 kJ mol^(-1)

9.0g m ice at 0^(@)C is mixed with 36gm of water at 50^(@)C in a thermally insulated container, using the following data, answer the question that follow: C_(P (H_(2)O)) = 4.18 Jg^(-1) K^(-1), Delta H_("fusion") (ice) = 335 J g^(-1) Delta S_("ice") is

9.0g m ice at 0^(@)C is mixed with 36gm of water at 50^(@)C in a thermally insulated container, using the following data, answer the question that follow: C_(P (H_(2)O)) = 4.18 Jg^(-1) K^(-1), Delta H_("fusion") (ice) = 335 J g^(-1) Delta S_("water") is

For the following cell reaction, Ag | Ag^(+) | AgCl | Cl^(-) | Cl_(2) , Pt Delta G_(f)^(0) (AgCl) =-109 kJ//mol Delta G_(f)^(0) (Cl ) = -129kJ//mol Delta G_(f)^(0) (Ag^(+)) = 78 kJ//mol E^@ of the cell is

DeltaS for vapousization of 900 g water (in KJ//K) is [DeltaH_(vap) = 40 KJ//mol]

When 5 litres of a gas mixture of methane and propane is perfectly combusted at 0^(@)C and 1 atmpsphere, 16 litres of oxygen at the same temperature and pressure is consumed. The amount of heat released from this combustion in kJ (Delta H _("comb.)) (CH _(4)) = 890 kJ mol ^(-1) , Delta H _("comb.) (C_(3) H _(8)) = 2220 kJ mol ^(-1))