Predict and write the changes took place in temperature and changes observed in the state of matter when a student is heating a beaker containing ice cubes.

Perform an experiment to understand the effect of temperature on change of state of matter.

Do we have to make changes every time in the temperature and pressure to change the state of a matter ? Explain.

What changes do you observe on the outer surface of the glass containing ice cold water?

One end of a unifonn metal rod of length 100 cm is placed in ice and the other end is placed in boiling water. A point of the rod which is at a distance of 60 cm from the ice end is maintained at a constant temperature of 325^(@) C. If 2 g of water is converted into steam per second.-the mass of ice melted per second in steady state is (Latent heat of steam = 6.75 times latent heat of fusion of ice)

Two cylinders A and B of equal capacity are connected to each other via a stopcock. A contains a gas at standard temperature and pressure. B is completely evacuated. The entire system is thermally insulated. The stopcock is suddenly opened. Answer the following : (a) What is the final pressure of the gas in A and B ? (b) What is the change in internal energy of the gas ? (c) What is the change in the temperature of the gas ? (d) Do the intermediate states of the system (before settling to the final equilibrium state) lie on its P-V-T surface ?