A sample of gas with a thermometer immersed in the gas is held over a hot...

A sample of gas with a thermometer immersed in the gas is held over a hot plate. A student is asked to give a step-by-step account of what makes our observation of the temperature of the gas increase. His response includes the following steps.

(a) The molecules speed up.
(b) Then the molecules collide with one another more often.
(c) Internal friction makes the collisions inelastic.
(d) Heat is produced in the collisions.
(e) The molecules of the gas transfer more energy to the thermometer when they strike it, so we observe that the temperature has gone up.
(f) The same process can take place without the use of a hot plate if you quickly push in the piston in an insulated cylinder containing the gas.

(i) Which of the parts (a) through (f) of this account are correct statements necessary for a clear and complete explanation? (Select all that apply.)

(ii) Which are correct statements that are not necessary to account for the higher thermometer reading? (Select all that apply.)

(iii) Which are incorrect statements? (Select all that apply.)

Expert Solution

genius_generous answered 2 years ago

When a thermometer is inserted into hot water, the mercury or alcohol is sometimes observed to...

When a thermometer is inserted into hot water, the mercury or alcohol is sometimes observed to fall slightly before it rises. Why?

Hydrogen gas is blown over hot iron (II) oxide. Write the balanced half reactions and the...

Hydrogen gas is blown over hot iron (II) oxide. Write the balanced half reactions and the balanced net ionic equation. I know the half reactions are H2 -> H2O and FeO -> Fe But I don't understand how to get these. Why is the oxygen still with the iron in the half reaction? Thanks.

A Constant – Volume gas thermometer is at 55 kPa pressure at the triple point of...

A Constant – Volume gas thermometer is at 55 kPa pressure at the triple point of water. By how much does its pressure change for each Kelvin temperature change? (d) The Temperature of a constant-pressure gas thermometer is directly proportional to the gas volume. If the volume is 1.00 L at the triple point of water, what is it at water’s normal boiling point?

A gas sample enclosed in a rigid metal container at room temperature (20.0∘C) has an absolute pressure p1. The container is immersed in hot water until it warms to 40.0∘C. What is the new absolute pressure p2?

Part A A gas sample enclosed in a rigid metal container at room temperature (20.0∘C) has an absolute pressure p1. The container is immersed in hot water until it warms to 40.0∘C. What is the new absolute pressure p2? Express your answer in terms of p1. p2 = 1.0682p1 Part B Nitrogen gas is introduced into a large deflated plastic bag. No gas is allowed to escape, but as more and more nitrogen is added, the bag inflates to accommodate it. The pressure...

16. If a sample of oxygen gas is collected over water at a pressure of 0.921...

16. If a sample of oxygen gas is collected over water at a pressure of 0.921 atm and 23°C, whatis the partial pressure of the oxygen gas? 17. A mixture of gases exerting a pressure of 1.11 atm consists of 0.20 mol of O2 gas, 0.3 mol of H2 gas, and 0.7 mol of CO2 gas. What is the partial pressure of the O2 gas, the H2 gas andthe CO2 gas? 18. 0.5 mol of O2 is added to a...

A sample of granite at 85.0 C is immersed into a 75.0g of water at 24.0C....

A sample of granite at 85.0 C is immersed into a 75.0g of water at 24.0C. At equilibrium the temp. is 28.7C, what is the mass of the granite? (Cs for granite=.790 J/g*C)

In a student experiment, a constant-volume gas thermometer is calibrated in dry ice (−78.5°C) and in...

In a student experiment, a constant-volume gas thermometer is calibrated in dry ice (−78.5°C) and in boiling ethyl alcohol (78°C). The separate pressures are 0.896 atm and 1.629 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? (b) What pressure would be found at the freezing point of water? (c) What pressure would be found at the boiling point of water?

In a student experiment, a constant-volume gas thermometer is calibrated in liquid nitrogen (−196°C) and in...

In a student experiment, a constant-volume gas thermometer is calibrated in liquid nitrogen (−196°C) and in boiling pentane (36.1°C). The separate pressures are 0.347 atm and 1.436 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?...

A 550mL sample of oxygen gas is collected over water at a temperature of 21.0°C and...

A 550mL sample of oxygen gas is collected over water at a temperature of 21.0°C and a pressure by f 743mmHg according to the following reaction. (vapor pressure of water at 21.0°C=18.7mmHg, 1atm=760mmHg) 2KCLO3+(s) 2KCL +(s) + 3O2(g) a. How many moles of oxygen gas was collected? b. How many grams of potassium chlorate reacted?

1.) The total pressure (PT) os a sample of a gas collected over water at 13.0oC...

1.) The total pressure (PT) os a sample of a gas collected over water at 13.0oC is 0.588 atm. Determine the partial pressure (Pi) of the gas. 2.) Rearrange the ideal gas equation to solve for density (g/v). Hint: you will need to make a substitution for moles "n" 3.) Use your quation from (z) and the result from (l) to calculate the molecular weight of a gas if 303 ml of the gas, collected at 28oC, weighed 0.347g.

Question