6.The index of compression n tends to reach ratio of specific heats y when

7.The value of the product of molecular weight and the gas characteristic constant for all the gases in S.I. units is

8.If a certain amount of dry ice is mixed with same amount of water at 80�C, the final temperature of mixture will be

9.A perfect gas at 27�C is heated at constant pressure till its volume is double. The final temperature is

10.Curve A in Fig. 1.1 compared to curves B and C shows the following type of expansion