List of top Chemistry Questions on Thermodynamics asked in Tripura JEE

15 mole of an ideal gas at 27°C is kept in a cylinder of 15 L capacity. Through the small leakage of the cylinder, all gases are passed out and mixed at the atmosphere. Considering atmospheric pressure to be 1 atm, find the amount of work done by the ideal gas.

Standard heat of formation values for $ \text{C}_2\text{H}_6(g), \, \text{CO}_2(g), \, \text{and} \, \text{H}_2\text{O}(l) $ are -21.1, -94.1, and -68.3 kcal mol$^{-1}$, respectively. Indicate the standard heat of combustion value of $ \text{C}_2\text{H}_6(g) $ involving the above data.

Consider the following reaction: $ \text{CO}(g) + \frac{1}{2} \text{O}_2(g) \rightarrow \text{CO}_2(g) $ At 27°C, the standard entropy change of the process becomes -0.094 kJ/mol·K. Moreover, standard free energies for the formation of $ \text{CO}_2(g) $ and $ \text{CO}(g) $ are -394.4 and -137.2 kJ/mol, respectively. Predict the nature of the above chemical reaction.