0.30 μF 10 uF ЧН T 2.5 uF

2. Show that if the temperature on the Celsius scale changes by ATc, the Fahrenheit temperature changes by AT, = {ATc. 3. A solid substance has a density po at a temperature To. If its temperature is increased by an amount TA, show that its density at the higher temperature is given by Po 1+ BAT 4. A circular copper ring at 20.0°C has a hole with an area of 9.980 cm². (a) What minimum temperature must it have so that it can be slipped onto a steel rod having SO

2. A spherical balloon is made from a material whose mass is 3.30 kg. The thickness of the material is negligible compared to the 1.45 m radius of the balloon. The balloon is filled with helium (He) at a temperature of 295 K and just floats in air, neither rising nor falling. The density of the surrounding air is 1.19 kg/m3 and the molar mass of helium is 4.0026x10-3 kg/mol. Find the absolute pressure of the helium gas. Pa Q A 2 N I W S #3 X H ption command E D 69 + $ 4 C R F G Search or type URL % 5 V T G MacBook Pro . .... I command option { [ ? 1 = "1 F O } 1

What volume is occupied by 200 g of oxygen under a pressure of 2.00 atm and a temperature of 310 K ? Πνα ΑΣφ Request Answer Submit

A bar of aluminum is 1m long at a temperature of 400K. At what temperature in degrees K is the bar 0.999m in length? Use a an expansion coefficient of 25x10/degC for aluminum. 208K 312K 360K 403K esc 7. 00 2$ 4 %23 2 E R F G S C 36

2 4. Calculate the number of gas molecules in a container of volume 0.30 m³ filled with gas under a partial vacuum of pressure 25 Pa at 17 °C. A I on N 2 W S #3 3. X H H command C E D $ 4 C R F % 5 G Search or type URL V T G A 832 11332 6 MacBook Pro B Y H & 7 N U J * 00 8 M 1 ( · 9 K O V H I ) O L command P > I : option K { [ ? I

The volume of an automobile tire is 2.5 × 10−2m3 . the pressure of the air in the tire is  3 atm and the temperature is 37C ◦ . what is is the mass of air in grams ? The mean molecular mass of air is 29g.                                     1 atm = 1.01  × 105 Pa ;    Calculate to 2 decimals.

2. A vertical Cylinder with a heavy piston contains air at 300 K. The initial pressure is 3.35*10^5 Pa, and the initial volume is 0.300 m^3. Take the molar mass air as 28.9 g/mol and assume Cv = 5R/2, R = 8.314 J/mol K 
a) Find the specific heat of air at constant volume in units of J/kg C 
b) Calculate the mass of the air in the cylinder
 c)Suppose the piston is held fixed. Find the energy input required to raise the temperature of the air to 691K.

The initial temperature of three moles of oxygen gas is 33.5°C, and its pressure is 7.80 atm. (a) What will its final temperature be when heated at constant volume so the pressure is two times its initial value? °C (b) Now the volume of the gas is also allowed to change. Determine the final temperature if the gas is heated until the pressure and the volume are doubled. °C

an aluminum aerosol can will burst if the pressure inside reaches 210.0 psi. If the can initially contains an ideal gas at 459.5 kPa at 298.15 K, at what temperature (in K) will the can burst?