A student takes 50 g wax (specific heat `=0.6 kcal//kg^(@)C`) and heats it till it boils. The graph between temperature and time is as follows. Heat supplied to the wax per minute and boiling point are respectively.

A graph is drawn by taking the rise in temperature on Y axis and heat supplied on x axis .Find out the melting point and boiling point of heat substance

How much heat 50 gm of water at 25^@C will take to reach boiling point?

If liquefied oxygen at 1 atmospheric pressure is heated from 50K to 300k by supplying heat at constant rate. The graph of temperature vs time will be

If liquefied oxygen at 1 atmospheric pressure is heated from 50K to 300k by supplying heat at constant rate. The graph of temperature vs time will be

If liquefied oxygen at 1 atmospheric pressure is heated from 50K to 300k by supplying heat at constant rate. The graph of temperature vs time will be

Take the mechanical equivalent of heat as 4J // cal. A 10-gram bullet moving at 2000 m//s plunges into 1 kg of paraffin wax ( specific heat 0.7 cal // ( g^(@) C ) . The wax was initially at 20^(@)C . Assuming that all the bullet's energy heats the wax, its final temperature is

A 20gm bullet whose specific heat is 5000 J / ( kg-.^(@)C ) and moving at 2000 m/s plunges into a 1.0 kg block of wax whose specific heat is 3000 J /( kg-.^(@)C ). Both bullet and wax are at 25^(@)C and assume that (i) the bullet comes to rest in the wax and (ii) all its kinetic energy goes into heating the wax. Thermal temperature of the wax in .^(@)C is close to

Take 2kg of ice is at - 5^@ C. Supply heat is continuously to ice. Till it starts boiling. Note the temperature every minute. Draw a graph between temperature and time using the values you get. What do you understand from the graph. Write the conclusions. ( You know that ice melts at 0^@ c and boils at l00^@C