Exam 19: Temperature

Equal volumes of hydrogen and helium gas are at the same pressure.The atomic mass of helium is four times that of hydrogen.If the total mass of both gases is the same,the ratio of the temperature of helium (He)to that of hydrogen (H₂)is

Suppose the ends of a 30-m long steel beam are rigidly clamped at 0°C to prevent expansion.The beam has a cross-sectional area of 30 cm².What force against the clamps does the beam exert when it is heated to 40°C? (α_Steel = 1.1 × 10−⁵/°C,Y_steel = 20 × 10¹⁰ N/m²).

Which of the following is not a possible thermometric property of a body?

One mole of an ideal gas is held at a constant pressure of 1 atm.Find the change in volume (in liters)if the temperature changes by 50°C.

48 grams of oxygen at room temperature consists of how many moles?

Helium condenses into the liquid phase at approximately 4 K.What temperature,in degrees Fahrenheit,does this correspond to?

A container with a one-liter capacity at 27° C is filled with helium to a pressure of 2.0 atm.(1 atm = 1.0 × 10⁵ N/m². )How many moles of helium does it hold?

A pressure of 10.0 mm Hg is measured at the triple-point of water using a constant-volume gas thermometer.What will the pressure be (in mm Hg)at 50.0°C?

At what Fahrenheit temperature are the Kelvin and Fahrenheit temperatures numerically equal?

A helium-filled balloon has a volume of 1 m³.As it rises in the earth's atmosphere,its volume expands.What will its new volume be (in m³)if its original temperature and pressure are 20°C and 1 atm,and its final temperature and pressure are −40°C and 0.1 atm?

In order to understand the concept of temperature it is necessary to understand

Death Valley in California receives many German tourists.When you convert a summer temperature reading of 130° F to the Celsius scale they use at home,you find that the Celsius temperature is about

Two moles of an ideal gas are placed in a container of adjustable volume.When measurements are made

In order for two objects to have the same temperature,they must

An auditorium has dimensions 10 m × 10 m × 60 m.How many moles of air fill this volume at one atmosphere and 0°C?

The pressure of a substance is directly proportional to its volume when the temperature is held constant and inversely proportional to its temperature when the volume is held constant.Is this substance an ideal gas? Explain why your answer is correct.

An auditorium has a volume of 6 × 10³ m³.How many molecules of air are needed to fill the auditorium at one atmosphere and 0°C?

Determine the change in length of a 20-m railroad track made of steel if the temperature is changed from −15°C to +35°C.(α_STEEL = 1.1 × 10−⁵/°C)

A scuba diver has his lungs filled to half capacity (3 liters)when 10 m below the surface.If the diver holds his breath while quietly rising to the surface,what will the volume of the lungs be (in liters)at the surface? Assume the temperature is the same at all depths.(The density of water is 1.0 × 10³ kg/m³. )

A bowling ball size probe from a spaceship and a pebble size object land on a large asteroid that is far from any star.After a long period of time has passed,it is highly probable that the pebble and the probe