Answer
Verified
394.5k+ views
Hint: The compressibility factor tells us about the deviation of a real gas from ideal behavior. The value of compressibility factor Z for an ideal gas is 1. Any value of Z other than 1 shows non-ideal behavior.
Complete step by step solution:
Let’s look at the answer:
First let us see the assertion statement. $C{{H}_{4}}$and $C{{O}_{2}}$have the value of Z (Compressibility factor) less than one.
*We know that the attraction forces in both these gases are more. Therefore, the value of Z will be less than 1. So, the assertion statement is true.
Now, let’s look at the reason. It states that Z<1 is due to repulsive forces among the molecules.
*The deviation of a gas from ideal behavior is due the types of forces present in the gas. In an ideal gas it is assumed that no forces of attraction or repulsion are present. This is in accordance to one of the postulates of the kinetic theory of gases.
*If the repulsive forces dominate then the value of Z will be greater than 1. And if the attractive forces dominate then the value of Z will be less than 1. And if no repulsive or attractive forces are present then the value of Z will be equal to 1.
Now, it is given that Z<1 is due to repulsive forces among the molecules which is incorrect.
Hence, the assertion is correct but the reason is incorrect.
Hence, the answer is option (C).
Note: A gas can be easily liquefied if Z < 1 as the volume of the gas will be less than the ideal volume. Whereas a gas is difficult to liquefy > 1 as the volume occupied by the gas is more than ideal volume,
Formula for Z
$Z=\dfrac{PV}{nRT}$
Complete step by step solution:
Let’s look at the answer:
First let us see the assertion statement. $C{{H}_{4}}$and $C{{O}_{2}}$have the value of Z (Compressibility factor) less than one.
*We know that the attraction forces in both these gases are more. Therefore, the value of Z will be less than 1. So, the assertion statement is true.
Now, let’s look at the reason. It states that Z<1 is due to repulsive forces among the molecules.
*The deviation of a gas from ideal behavior is due the types of forces present in the gas. In an ideal gas it is assumed that no forces of attraction or repulsion are present. This is in accordance to one of the postulates of the kinetic theory of gases.
*If the repulsive forces dominate then the value of Z will be greater than 1. And if the attractive forces dominate then the value of Z will be less than 1. And if no repulsive or attractive forces are present then the value of Z will be equal to 1.
Now, it is given that Z<1 is due to repulsive forces among the molecules which is incorrect.
Hence, the assertion is correct but the reason is incorrect.
Hence, the answer is option (C).
Note: A gas can be easily liquefied if Z < 1 as the volume of the gas will be less than the ideal volume. Whereas a gas is difficult to liquefy > 1 as the volume occupied by the gas is more than ideal volume,
Formula for Z
$Z=\dfrac{PV}{nRT}$
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are
Three beakers labelled as A B and C each containing 25 mL of water were taken A small amount of NaOH anhydrous CuSO4 and NaCl were added to the beakers A B and C respectively It was observed that there was an increase in the temperature of the solutions contained in beakers A and B whereas in case of beaker C the temperature of the solution falls Which one of the following statements isarecorrect i In beakers A and B exothermic process has occurred ii In beakers A and B endothermic process has occurred iii In beaker C exothermic process has occurred iv In beaker C endothermic process has occurred
What is the stopping potential when the metal with class 12 physics JEE_Main
The momentum of a photon is 2 times 10 16gm cmsec Its class 12 physics JEE_Main
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
Trending doubts
Difference Between Plant Cell and Animal Cell
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
How do you solve x2 11x + 28 0 using the quadratic class 10 maths CBSE
Select the correct plural noun from the given singular class 10 english CBSE
What organs are located on the left side of your body class 11 biology CBSE
The sum of three consecutive multiples of 11 is 363 class 7 maths CBSE
What is the z value for a 90 95 and 99 percent confidence class 11 maths CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
How many squares are there in a chess board A 1296 class 11 maths CBSE