Only 8-10

3. Remains the same Remains the same 4. Multiplied by 4 Doubles '2'.\" W 008 (part 1 of 3) 10.0 points The molecular mass of helium is 4 g/mol, I de ponce (nad2298) Homework 12 Heat Scamp; Thermodynamics - perry (56080) 2 the Boltzmann's constant is 1.38066 X 10'23 J /K, the universal gas constant is 8.31451 J /K-mol, and Avogadro's number is 6.02214 x 1023 1/mol. Given: 1 atm = 101300 Pa. How many atoms of helium gas are required to ll a balloon to diameter 38 cm at 80 C and 1.273 atm? M 009 (part 2 of 3) 10.0 points What is the average kinetic energy of each helium atom? Answer in units of J. __#_________________~ 010 (part 3 of 3) 10.0 points What is the rms speed of each helium atom? Answer in units of m/s. How much energy is required to change a 43 g ice cube from ice at *11C to steam at 114 C? The Specic heat of ice is 2090 J /kg - C, the specic heat of water is 4186 J/kg - C, the specic heat of stream is. 2010 J /kg ' C, the heat of fusion is 3.33 X 105 J / kg, and the heat of vapolrization is 2.26 x 106 J / kg. Answer in units of J. _..,...._--.- 014 10.0 points If you hold one end of a metal nail against a piece of ice, the end in your hand soon becomes cold. Which description is right? 1. Temperature ows from the ice to your hand