A m ice-skater moving at v glides to a stop. (a) Assuming the ice is at 00C and that 50 % of the heat generated by friction is absorbed by the ice, how much ice melts?

Pour a liter of water at 40^oC into a liter of water at 20^oC and the final temperature of the two  becomes _____________

What is the heat absorbed by 200 ml of water at 20^oC from your body at ( 37^oC ) when you drink water? 

What quantity of heat would be given out by 100 gm of copper in cooling from 80⁰C to 20⁰C  

A 70Kg person whose body temperature is 37^oC consumes an entire 0.355 liters can of a soft drink (which is mostly water) at 12^oC. Calculate the temperature change in a person when they drink a cold soda.

___________________is a process of transformation directly from solid phase to the gaseous phase without passing through an liquid phase.

What is the quantity of heat required to change a mass of water 2 Kg at 100^oC into steam at 100^oC?

1 calorie =______________

Which of the following expands most when the temperature is increased? Equal volumes of_______________

Which requires more heat either 75 kgs of Lead or 10 kgs. of  Aluminium, if the temperasture raised in both the metals is 10^oC.