Priestley's Gas Experiments and Ethics

Yang Galinski, a historian of chemistry, discusses Joseph Priestley's experimental apparatus used in the 1770s to discover new gases, including oxygen. Priestley's simple setup, using household items, allowed for reproducible experiments. He identified oxygen, or 'dephlogisticated air,' as superior for respiration through experiments involving mice, which sparked controversy. A poem by Anna Leticia Babu reflects on the ethical implications. Priestley later developed a method to test gases without using mice, using nitrous air reactions. For more information, visit the Chemical Heritage Foundation.

What was a key principle in Joseph Priestley's scientific work?

• Avoidance of animal testing

• Complexity of apparatus

• Reproducibility of experiments

• Use of rare materials

What household items were part of Priestley's experimental setup?

• Metal containers

• Plastic tubes

• Wooden boxes

• Glassware and bottles

What did Priestley initially call the gas we know as oxygen?

• Hydrogen

• Nitrous air

• Dephlogisticated air

• Carbon dioxide

How did Priestley test the quality of gases?

• Measuring temperature changes

• Using mice to measure survival time

• Observing plant growth

• Using chemical indicators

What was the public's reaction to Priestley's use of mice in experiments?

• It was widely accepted

• It was controversial

• It was ignored

• It was celebrated

Who wrote a poem reflecting on the mice used in Priestley's experiments?

• William Wordsworth

• John Keats

• Samuel Taylor Coleridge

• Anna Leticia Babu

What did the poem by Anna Leticia Babu emphasize?

• The mice's plea for freedom

• The beauty of nature

• Priestley's scientific achievements

• The importance of oxygen

What new method did Priestley develop to test gases?

• Combining gases and measuring volume change

• Observing color changes

• Using litmus paper

• Using a barometer

What gas did Priestley use in his new method for testing?

• Carbon monoxide

• Nitric oxide

• Hydrogen

• Methane

What was the outcome of Priestley's new method for testing gases?

• It was unsuccessful

• It allowed liberation of mice

• It required more mice

• It was abandoned