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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 is 1. 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 be 1. monoatomic and undergoing an adiabatic change 2. monoatomic and undergoing an isothermal change 3. diatomic and undergoing an adiabatic change 4. 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 gas 1. is positive 2. is negative 3. is zero 4. may be positive ..................................... .. The specific heat of Ar at constant volume is 0.075 kg -1 K -1 . Calculate the atomic weight (R = 2 cal mol -1 K -1 ) 1. 40 2. 40.4 3. 40.2 4. 40.8 An ideal gas is taken through the cycle A B C A 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 C A is 1. -5 J 2. - 10 J 3. - 15 J 4. - 20 J ;;;;;;;;;;;;;; Q. 15 Which of the following has the largest particle density (molecules per unit volume) 1. 0.8 L of N 2 at 350 K and 100 kPa 2. 1.0 L of H 2 at 350 K and 150 k Pa 3. 1.5 L of O 2 at 350 K and 90 kPa 4. 2.0 L of heat at 350 K and 120 k Pa .... On an X temperature scale, water freezes at -125.0 o X and boils at 375.0 o X. On a Y temperature scale, water freezes at - 70.0 o Y and boils at - 30.0 o Y. The value of temperature on X-scale equal to the temperature of 50.0 o Y on Y-scale is 1. 455.0 o X 2. - 125.0 o X 3. 1375.0 o X 4. 1500.0 o X


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 is
 
 
 
 
 
 
 
 

................

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 be
 
  monoatomic and undergoing an adiabatic change
 
  monoatomic and undergoing an isothermal change
 
  diatomic and undergoing an adiabatic change
 
  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 gas
 
  is positive
 
  is negative
 
  is zero
 
 

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)
 
  40
 
40.4
 
  40.2
 
  40.8

 

An ideal gas is taken through the cycle A B C A 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 C A is
 
  -5 J
 
  - 10 J
 
  - 15 J
 
  - 20 J

;;;;;;;;;;;;;;

 

 

Q. 15 Which of the following has the largest particle density (molecules per unit volume)
 
  0.8 L of N2 at 350 K and 100 kPa
 
  1.0 L of H2 at 350 K and 150 k Pa
 
  1.5 L of O2 at 350 K and 90 kPa
 
  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 is
 
  455.0o X
 
  - 125.0o X
 
  1375.0o X
 
  1500.0o X


Grade:upto college level

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