Question

1. an insulated aluminum can of mass 200 g contains 300 g of water at 25 C. 10 g metal block at 80 C is dropped into the water. The final temperature of the water, can, and block is 30 C. What is the specific heat of the metal block? (specific heat of H2O= 4180 J/kgC and specific heat of Al can= 900 J/kg C)

2. Define the Boltzmann's constant.

3. An ideal gas undergoes an isothermal (constant-temperature) expansion at temperature T, during which its volume changes from V1 to V2. How much work does the gas do? Provide the answer in both volume and pressure of the ideal gas.

Answer 1

2.Boltzmann's constant is named after the scientist Ludwig Boltzmann who says that the constant defines the relation between absolute temperature and the kinetic energy contained in each molecule of an ideal gas .
It's value is approximately k_B = 1.38064852 × 10^-23.m².kg.s^-2.K^-1