Enthalpy is an property. 

TLS Online TPP Program

#Question id: 20130

#XL - P Chemistry

In thermodynamics, a process is called reversible when,

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#Question id: 20131

#XL - P Chemistry

Under certain conditions, the value of ΔG for a hypothetical reaction, X + Y ¾→ Z is greater than zero, then –

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#Question id: 20132

#XL - P Chemistry

For which of the following processes will energy be absorbed –

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#Question id: 20133

#XL - P Chemistry

For the combustion of 1 mole of liquid benzene at 25ºC, the heat of reaction at constant pressure is given by, C6H6(l) + 7 O2 (g) → 6CO2 (g) + 3H2O (l); DH = –780980 cal.

What would be the heat of reaction at constant volume?

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#Question id: 20134

#XL - P Chemistry

Calculate the heat of formation of benzene from the following data, assuming no resonance. Bond energies :

C – C = 83 kcal = 140 kcal C – H = 99 kcal

Heat of atomisation of C = 170 .9 kcal

Heat of atomisation of H = 52.1 kcal

TLS Online TPP Program

#Question id: 20135

#XL - P Chemistry

Calculate ΔH at 358 K for the reaction

Fe2O3(s) + 3H2(g) → 2Fe (s) + 3H2O(l)

Given that, DH298= – 33.29 kJ mole^–1 and Cp for Fe₂O₃ (s), Fe (s), H₂O (l) and H₂ (g) are

103.8, 25.1, 75.3 and 28.8 J/K mole.