For a steady flow process, the enthalpy changes from 400 kJ/kg to 100 kJ/kg and entropy changes from 1.1 kJ/kg·K to 0.7 kJ/kg·K. The ambient temperature is 300 K. Neglecting changes in kinetic and potential energies, the change in availability (exergy) of the system is:

Which of the following territories was annexed by Lord Dalhousie under the pretext of misgovernance, and not directly through the Doctrine of Lapse?

What was the primary stated reason for the Partition of Bengal in 1905 by Lord Curzon?

Which of the following events is considered the immediate trigger for the launch of the Non-Cooperation Movement by Mahatma Gandhi?