Question

You have two solid rectangular "prisms" made of pure elements. The face area of each prism 1 cm2 and each prism has the same mass (15 g). The length of prism A (metallic, grayish white in color) is 2.8 cm and for prism B (metallic, silvery gray in color) is 3.3 cm. The element in prism A has an atomic weight of 73 while prism B's element has an atomic weight of 48. Both samples are at the same temperature (- 20°C below room temperature). A) Which sample contains more heat? B) Which sample has a greater intemal energy? C) Compare the heat capacities of the two solids. D) Compare the mass specific heat of the two solids. E) Each sample is to be dropped into 100 g of water (separate beakers) that is 10°C above room temperature. What will happen in cach of these situations? F) Which sample will have a greater impact on the internal energy of the water?

Answer 1

A. Though the masses are equal, due to the atomic weight element A bound to possess more heat.

B. As A possess more heat consequently the internal energy ought to be more.

C. Heat capacity is given by

mc=Q/∆t, heat capacity is more for element A rather than B.

D. Specific heat capacity is concern, element B is more than that of A.