One of the methods for estimating the temperature at the center of the sun is based on the ideal gas equation. If the center is assumed to be a mixture of gases whose average molar mass is 2.04 g/mol, and the density and pressure are 1.14 g/cm° and 2.01 x 10° respectively, calculate the temperature. atm,

3

How many kilojoules are required to change the temperature of 10.0 g  of water from 18.3 oC  to 49.6 oC

In an electrochemical cell, a metal anode lost 0.195 g while a total volume of 0.04592 L of hydrogen gas was produced. The temperature was 298 K and the barometric pressure was 768.1 mm Hg. At 298 K, the vapor pressure of water is 23.8 mm Hg.  What is the molar mass of the metal?

6) Calculate the absolute entropy for 1 mole of Ar gas (monatomic) with 22.4 liter volume at 273 K using Boltzmann's formula. What is the change in entropy if the temperature doubles while V is constant? What is the change in entropy if the volume doubles while T is constant? What is the change in entropy if both T and V double? (Note: To evaluate In(N!) use Stirling's asymptotic formula In(N!) ~ N In N – N ) S-k log W LVDWIG BOLTZMANN 18W-1906 DE FHILPAULA BOLTZMANN GER CAR