Chapter 1, Problem 1.43E

Which statement about temperature is TRUE? A small block of aluminum sitting in a beaker of boiling water for several hours will have a different temperature than the boiling water. Temperature is a measure of the average kinetic energy of particles in a substance. Temperature moves from colder objects to hotter objects. A cup of boiling water and a bucket of boiling water will have different temperatures because they have different volumes.

A garage manager must determine the number of metal ball bearings (BBs) in a stock container by mass measurements. He counts out 5 BBs and finds their total mass to be 1.9 g. He also finds the total mass of the stock container and the BBs to be 239.3 g and the mass of an identical, empty stock container to be 115.8 g. The store manager then uses his data to calculate the number of BBs in the stock container: Average mass of one BB  = 1.9/5 = 0.4 g   Mass of BBs in container = 239.3 g - 115.8 g = 123.50 g Number of BBs in container =  123.50/0.4 g= 300 BBs   (a) Evaluate the manager’s calculations with regard to significant digits. If necessary, rewrite any steps, recalculating with the adjusted quantities. For  any step that you have to rewrite, explain why the manager’s calculation is in error. (b) Should the manager regard the answer to the calculation in (a) as a perfect measure of the number of ball bearings in the container? (c) How could the manager have changed his procedure to…

Change 80 degrees Celsius to Fahrenheit

Calculate the amount of heat needed to boil 189. g of water (H₂O), beginning from a temperature of 52.0 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. 0 x10 X 3

What is the reason behind this? Inorder to measure the temperature of a object accurately, simple liquid-in-glass thermometer must be at the same temperature as the object.

Convert 22 °C into Fahrenheit and Kelvin temperatures

1. It is known that the boiling point of water on the Kelvin temperature scale is 373.15 K and the freezing temperature of water is 273.15 K. A temperature scale, called the Reaumur (R) scale, is defined by identifying the freezing point of water as 0.0°R and the boiling point of water as 80.0°R. What is 62.3°R on the Kelvin scale? Clearly define your variables.

Calculate the amount of heat needed to boil 126. g of water (H₂O), beginning from a temperature of 99.3 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. Ú ☐ x10 X

A chemist measures the amount of chlorine gas produced during an experiment. She finds that 113. g of chlorine gas is produced. Calculate the number of moles of chlorine gas produced. Be sure your answer has the correct number of significant digits. |mol x10