For many purposes we can treat methane (CH) as an ideal gas at temperatures above its boiling point of -161. °C. Suppose the temperature of a sample of methane gas is raised from -13.0 °C to 17.0°C, and at the same time the pressure is changed. If the initial pressure was 0.26 kPa and the volume increased by 30.0%, what is the final pressure? Round your answer to the correct number of significant digits.

Explanation:

You can use the combined gas law:

You need to find P₂ when:

Thus, clear P₂ from the equation, subsitute and compute:

         P₂ = 0.26kPa ← answer

Since the factor P₁ has two significant figures, the result is limited to two significant figures.

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hope it ,

bioteacher101