The composition of air is shown in the table below. Substance Composition of Dry Air Nitrogen 78.1% Oxygen 20.9% Argon 0.93% Carbon Dioxide 0.035% 13. A sample of air in a closed container is heated. (a) Would the total pressure of the air in the container increase, decrease, or remain unchanged? Explain your reasoning. (b) Would the percentage of oxygen in the air in the container increase, decrease, or remain unchanged? Explain your reasoning. (c) Would the partial pressure of oxygen in the container increase, decrease, or remain unchanged? Explain your reasoning. (d) What would be the partial pressure of nitrogen, PN,in a room in which the total air pressure was 0.987 atm?

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