b $(a)$ When diamond is converted into graphite when it is heated to $1500\,^oC$ and entropy is increased so $\Delta S > 0$ $(b)$ When pressure increases then molecules of gas will come closer and intermolecular distance decreases so entropy will also decrease and $\Delta S < 0$ $(c)$ When we increase the temperature of a gas then random ness is increased due to kinetic energy gained by molecules. So, $\Delta S > 0$ $(d)$ $H_2$ molecule is converted into atoms, the no. of particles increases . Thus entropy will increase. So, $\Delta S > 0$
Download our app
and get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*