K.C.S.E Physics Q & A - MODEL 2008PP1QN17

K.C.S.E Physics Q & A - MODEL 2008PP1QN17

​a) What is meant by absolute zero temperature? 
Fig. 10 shows a set up to investigate the relationship between temperature and volume for a certain gas.

b) State two factors that are kept constant, in order to determine the relationship. 
c) The graph in Fig. 11 shows the relationship between volume and temperature for the experiment.

(i) What was the volume of the gas at 0⁰C?
(ii) At what temperature would the volume of the gas be zero?
(iii) Explain why the temperature in part (ii) above cannot be achieved.
d) A sealed gas cylinder contains 300cm³ of certain gas at a temperature of 25⁰C, and at a pressure of 9.5x 10⁴pa. the gas in the cylinder was then cooled to 10⁰C.
Determine the new pressure of the gas in the cylinder.

answers