Aquantity of gas (mean molecular weight 36.2) is compressed according to the law pv = constant, the initial pressure and volume being 1.03 bar and 0.98 m respectively. the temperature at the start of compression is 17°c and at the end it is 115°c. the amount of heat rejected during compression is 3.78 kj, cp = 0.92. calculate (i) value of n (ii) final pressure (iii) change in entropy