Question

1.) N2 and Kr are sealed in two separate identical jars at STP. Compare the average kinetic energies and average molecular velocities of these gases.

2.)  When a metal rod, mass 21.9 g, heated to 85 C is placed into a coffee-cup calorimeter containing 200.0 ml of water at 20.0 C, the equilibrium temperature achieved by the system is 21.5 C. What is the heat capacity of metal?

Answer 1

1. 2 834 N 2 kr 2-929 13 : 1.5℃ fenmbera