(a) Estimate the specific heat capacity of sodium from the Law of Dulong and Petit. The molar mass of sodium is 23.0 g/mol. (b) What is the percent error of your estimate from the known value, 1230 J/kg · °C ?

Let's say you park your car outside overnight during the winter, when you first parked your car the temperature was 29.0 degrees C but overnight the temperature drops to -7.0 degrees C. If your initial gauge pressure was 200kPa, what will be the gauge pressure (in KPa) after the change in temperature?

Question 1. The table below shows a collection of data for a thermocouple. Temperature is in degrees Celsius, and the Voltage is in millivolts. (a) Plot the graph using rectangular graph paper with Temperature as the independent variable and determine the basic functional relationship between Temperature and Voltage. Alternatively, you can use Microsoft Excel to plot the data, but attach the graph in your answer page. (b) Determine specific the equation, using the method of selected points that best fits the data. Show how you determined the equation. If you need help, review Lecture-5 (c) What is the thermocouple voltage when the temperature is 1225 degree Celsius? Temperature (degree Celsius) Voltage (millivolts) 50 100 150 200 300 400 500 600 700 800 900 1000 2.5 6.7 8.8 11.2 17 22.5 26 32.5 37.7 41 48 55.2

In a student experiment, a constant-volume gas thermometer is calibrated in liquid nitrogen (−196°C) and in boiling methyl alcohol (64.7°C). The separate pressures are 0.344 atm and 1.556 atm. Hint: Use the linear relationship P = A + BT, where A and B are constants. (a) What value of absolute zero does the calibration yield?? °C(b) What pressure would be found at the freezing point of water? ?atm(c) What pressure would be found at the boiling point of water? ?atm

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.

You take an aluminum cylinder with a mass m = (315± 2) g out of a furnace at temperature T = (250 ± 5)C °and place it in a large bath of cool water. The final 1 temperature of the cylinder and water is T2 = (29 ±1) C° . How much heat flows from the cylinder to the water, and what are the absolute and relative errors in the heat transfer out of the cylinder? The heat transfer is given by Q = mc T ∆where ∆T is the change in temperature and c = (0.215± 0.005)cal/g C is ⋅t°he specific heat of aluminum.

A fresh hot cup of coffee is 84°C and the room temperature is 20.3°C.  After 5 minutes, the temperature of the coffee is 72.7°C.  Solve for the constant of proportionality, k.

A bubble of air is rising from the sea floor, from a depth of about 500 m. At this depth the pressure is 5.1*106 Pa (about 50.3 atm) and is at a temperature of about 7.0° C. It rises to the surface with the atmosphere, at a temperature of 20° C. If the bubble is observed to have a volume of 4 cm³ at the surface, what was its volume at the sea floor? Assume the number of moles of gas in the bubble is constant. B.

A wire lengthens 4% due to thermal expansion when heated from T. to T. If the wire were bent into the shape of a square, what percent increase in length would you expect along one edge of the square? If the wire were bent into the shape of a circle, what percent increase in diameter would you expect? Explain, using sentences and diagrams.

An ideal gas, at pressure 4.9 atmospheres, in a volume 1.1 m3 and at a temperature of 308 K, is compressed into a lower volume 0.44 m3, at a pressure of 6.26 atmospheres. What is the new temperature, in K with two digits of precision?