Mass of gas is 300 gm and its specific heat at constant volume is 750J/kg K. if gas is heated through 75°C at constant pressure of 105 N/m2, it expands by volume 0.08 ´ 106 cm3. find CP/CV.  (a) 1.4 (b) 1.374 (c) 1.474 (d) 1.5  ...... 2. At what temperature, the rms speed of gas molecules I half the value at NTP? (a) 68.25 K (b) 273 K (c) 345 K  (d) 0 K

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