06

06 of at a the 7. To what temperature must a neon gas sample heated to double its pressure the initial volume gas at 75"C is decreased by 15.0%? (2) 492 K (4) 642K 542 8. When a gas filled in a closed vessel is through IOC. its pressure is increased by 0.4% The initial temperature of the gas was (2) 2500 K (1) 250K (4) 25'C (3) 250•c g. "One gram molecules of a gas at NJ. P. occupies 22.4 litres" _ This fact was derived from (1) Dalton's theory (2) Avogadro's hypothesis (3) Berzelius hypothesis (4) Law of gaseous volume 10. A sample of gas at 1.2 atm and 27 oc is heated at constant pressure to 57 •C. Its final volume is found to be 4.75 litres. What was its original volume? Dalton's law not and 02 CO and C02 Ine partial press containing 2 g H2 a 1116m of total of total (2) 213'd of total (3) l/ßtn of two bulbs Of v an ideal gas at 11. connected. Wha bulbs if the temp (1) 15 atm (3) -12 atm 1B, Two non-reacti' (1) 4.32 litres (3) 4.22 litres (2) 5.02 litres (4) None of these 11. If the density of a certain gas at 300C and 768 torr 1.35 kg/m3 its density at STP would be (l) 1.4B kg/m3 (3) 1.25 kg/m3 (2) 1.5B kg/m3 (4) 1.4 kg/m3 19. 12. A vessel has 6 g of oxygen at a pressure P and temperature 400 K. A small hole is made in it so that 02 leaks out. How much 02 leaks out if the pressure is P12 and temperature 300 K? (3) 29 13. What percentofa sample of nitrogenmustbe allowed container with of Hg. When then total pre fraction of C v (1) 0.75 (3) 0.25 The density (1) STP (2) OOCand (4) 2730C; to escape if its temperature, are to be changed from 229 1100C, 0.7 atmand 1.00 r (1) 81.8% 20. Which of Ideal gas? to