1. A thermometer reads 30.9 °C. Calculate this temperature in Fahrenheit degrees. Fahrenheit temperature =  2. A thermometer reads 53.1° F. Calculate this temperature in Celsius degrees.Celsius temperature =  3. Which is higher 82.3 °F or 28.9 °C ?

2. A student measures the length of a brass rod at 20.0°C. The reading is 95.00 cm. What will be the length of the rod when the temperature is at: (a) - 15.0°C? (5 pts) (b) 55.0°C? (5 pts)

1. The space satellite Explorer V was made of aluminum and had a diameter of 36.0 cm at 0°C. It cooled off to -35°C when it reached its orbital height. What is the change in volume? (INCLUDE FBD) 2. A petroleum sample has a specific gravity of 0.847 at 20°C. If the coefficient of volume expansion of the petroleum is 0.000899 per °C, what is the specific gravity at 70°C? 3. Liquid oxygen freezes at -218.4°C and boils at 183°C. Express these temperature in terms of Fahrenheit scale.

At what temperature is the Celsius scale reading equal to twice the Fahrenheit scale reading? a. -12.3°F b. -24.6°F C. 12.3°C d.-6.1°C

5. (14.10) What is the specific heat of a metal substance if 135 kJ of heat needed to raise 4.1 kg of the metal from 18.0°C to 37.2°C? 6. (14.21) A 0.095-kg aluminium sphere is dropped from the roof of a 55-m-high building. If 65% of the thermal energy produced when it hits the ground is absorbed by the sphere, what is its temperature increase?

9. Compute the amount of heat transferred in two hours through a solid brick wall 7m x 3m x 230 mm, when the outer surface is at 5°C and the inner surface is 20°C. The coefficient of thermal conductivity of the brick is approximately 0.6 W/m-K.

5. A volume of 450 cm³ of air is measured at a pressure of 740 mm Hg absolute and a temperature of 20°C. If the pressure and temp changes to 760 mm Hg absolute and 0°C. Determine the final volume in cm³.

2. A thermometer is removed from a room where the temperature is 70°F and is taken outside, where the air temperature is 10°F. After half a minute the thermometer reads 50°F. What is the reading of the thermometer at t = 1 minute? How long will it take for the thermometer to reach 15°F?

If AT°C is the temperature difference of an object, then its value in Fahrenheit will be, a. ΔΤC x 1.8 O b. (AT°C x 1.8) 32 Ο . ΔΤC/1.8 d. (AT°C x 1.8) + 32

4. A circular piece of diameter 7.70 cm is cut from an aluminum sheet at 18 °C. If the sheet is then placed in an oven and heated to 125 °C, What will the new area of the hole be? cm?