Home
Class 11
CHEMISTRY
At 300K, heat of dissociation of lime st...

At 300K, heat of dissociation of lime stone is `+180 kJ mol^(-1).` Entropies of `CaCO_(3), CaO and Co_(2)` are respectively `93, 39 and 213 J mol^(-1) K^(-1).` Calculate `Delta S_("total")`

A

`-441`

B

`+441`

C

`+882`

D

`-220.5`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

Heats of atomisation of chlorine and hydrogen are 243 kJ mol^(-1) and 435 kJ mol^(-1) respectively. Heat of formation of HCl is -92 kJ mol^(-1) . Calculate the bond energy of HCL.

The heats of formation of CO_(2(g)) , H_2O_((l)) and CH_(4(g)) are respectively –394 kJ mol^(-1), -286 kJ mol^(-1) and -76 kJ mol^(-1) . Calculate the heat of combustion of methane.

The heat of formation of crystalline sodium chloride is -410 kJ mol^(-1) . The heat of sublimation of sodium metal is 180.8 kJ mol^(-1) . The heat of dissociation of chlorine gas into atoms is 242.7 kJ mol^(-1) . The ionisation energy of Na and electron affinity of Cl are 493.7 kJ and -368.2 kJ respectively. Calculate the lattice energy of NaCl.

What is the value of gas constant R in J mol^(-1 ) K^(-1) ?