Q3 What is the temperature at which 80 cm3 of a gas should be heated to increase its volume by 20% without changing the pressure? (Given that
the initial temperature of the gas is 25°C)

The final temperature of the gas : 84.6 °C

Charles's Law  

When the gas pressure is kept constant, the gas volume is proportional to the temperature  

T₁=initial temperature=25°C+273=298 K

V₁=initial volume=80 cm³

volume increment : 20% x 80 cm³=16 cm³

V₂ = Final volume = 80 cm³ + 16 cm³ = 96 cm³

So the final temperature :

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl