C₂H₆ (g) + 3.5 O₂ (g) →2CO₂ (g) + 3H₂O (g)

ΔSvap (H₂O, l) = x1 cal K^–1 (boiling point + T₁)

ΔHf (H₂O, l) = x₂

ΔHf (CO2) = x₃

ΔHf (C2H6) = x₄

Hence ΔH for the reaction is –

TLS Online TPP Program

#Question id: 20112

#XL - P Chemistry

The second law of thermodynamics says that in cyclic process.

TLS Online TPP Program

#Question id: 20113

#XL - P Chemistry

A heat engine absorbs heat Q1 at temperature T1 and heat Q2 at temperature T2. Work done by the engine is (Q1 + Q2). This data

TLS Online TPP Program

#Question id: 20114

#XL - P Chemistry

The molar neutralization heat for and as compared to molar neutralization heat of NaOH and HCl

TLS Online TPP Program

#Question id: 20115

#XL - P Chemistry

If the enthalpy of B is greater than of A, the reaction A→B is

TLS Online TPP Program

#Question id: 20116

#XL - P Chemistry

Which of the following fuels will have the highest calorific value (kJ/kg)

TLS Online TPP Program

#Question id: 20117

#XL - P Chemistry

Which is the best definition of “heat of neutralization”