Pressure versus volume graph for a real gas and an ideal gas are shown in Fig. 5.4. 

Answer the following questions on the basis of this graph. 

1. Interpret the behaviour of real gas with respect to ideal gas at low pressure. 

2. Interpret the behaviour of real gas with respect to ideal gas at high pressure. 

3. Mark the pressure and volume by drawing a line at the point where real gas behaves as an ideal gas. 

The standard enthalpy of combustion at 25°C of hydrogen, cyclohexene (C₆H₁₀) and cyclohexane (C₆H₁₂) are –241, –3800 and –3920 kJ mol–1 respectively. Calculate the standard enthalpy of hydrogenation of cyclohexene.

HCP crystal is made of A ions and B ions are arranged in 2/3rd of octahedral voids. The simplest formula of compound is :-

Enthalpy of neutralisation of CH₃COOH by NaOH is – 50.6 kJ/mol and the heat of neutralisation of a strong acid with NaOH is – 55.9 kJ/mol. The value of ΔH for the ionisation of CH₃COOH is :

Kindly Consider following table–

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Which of the following is a carbonate ore ?