A diatomic ideal gas is heated at constant volume until the pressure is doubled and again heated at constant pressure until volume is doubled. The average molar heat capacity for whole process is1.2.3.4.................Logarithms of readings of pressure and volume for an ideal gas were plotted on a graph as shown in the figure. By measuring the gradient, it can be shown that the gas may be1.monoatomic and undergoing an adiabatic change2.monoatomic and undergoing an isothermal change3.diatomic and undergoing an adiabatic change4.triatomic and undergoing an isothermal change..........................In a process the pressure of a gas is inversely proportional to the square of the volume. If temperature of the gas increases, then work done by the gas1.is positive2.is negative3.is zero4.may be positive.......................................The specific heat of Ar at constant volume is 0.075 kg-1K-1. Calculate the atomic weight (R = 2 cal mol-1K-1)1.402.40.43.40.24.40.8An ideal gas is taken through the cycle ABCA as shown in the figure. If the net heat supplied to the gas in the cycle is 5 J, the work done by the gas in the process CA is1.-5 J2.- 10 J3.- 15 J4.- 20 J;;;;;;;;;;;;;;Q. 15Which of the following has the largest particle density (molecules per unit volume)1.0.8 L of N2 at 350 K and 100 kPa2.1.0 L of H2 at 350 K and 150 k Pa3.1.5 L of O2 at 350 K and 90 kPa4.2.0 L of heat at 350 K and 120 k Pa....On an X temperature scale, water freezes at -125.0o X and boils at 375.0o X. On a Y temperature scale, water freezes at - 70.0oY and boils at - 30.0o Y. The value of temperature on X-scale equal to the temperature of 50.0oY on Y-scale is1.455.0o X2.- 125.0o X3.1375.0o X4.1500.0o X

Kevin Nash , 10 Years ago

Grade upto college level