Sahana Ansari and Neha Miglani Solutions for Chapter: States of Matter : Gases and Liquids, Exercise 4: Chapter Practice

Which one, in each of the following pairs is more viscous? Explain why?

Coconut oil, castor oil

Which one, in each of the following pairs is more viscous? Explain why?

Glycerine, Kerosene

Which one, in each of the following pairs is more viscous? Explain why?

Soft drink, aerated water

A large flask fitted with a stop-cock is evacuated and weighed; its mass is found to be$134.567 \mathrm{g}$. It is then filled to a pressure of $735 \mathrm{mm}$ at ${31}^{\mathrm{o}}\mathrm{C}$ with a gas of unknown molecular mass and then reweighed; its mass is $137.456 \mathrm{g}$.

The flask is then filled with water and weighed again; its mass is now $1067.9 \mathrm{g}$. Assuming that the gas is ideal, calculate the molar mass of the gas.

Density of a gas is found to be $5.46 \mathrm{g} /{\mathrm{dm}}^3$ at $300 \mathrm{K}$ and $2 \mathrm{bar}$ pressure. What will be its density at STP?

A gaseous mixture containing $50 \mathrm{g}$ of nitrogen and $10 \mathrm{g}$ of oxygen were enclosed in a vessel of $10 \mathrm{L}$ capacity at ${27}^{\mathrm{o}}\mathrm{C}$. Calculate the number of moles of each gas.

A gaseous mixture containing $50 \mathrm{g}$ of nitrogen and $10 \mathrm{g}$ of oxygen were enclosed in a vessel of $10 \mathrm{L}$ capacity at ${27}^{\mathrm{o}}\mathrm{C}$. Calculate the partial pressure of each gas.

A gaseous mixture containing $50 \mathrm{g}$ of nitrogen and $10 \mathrm{g}$ of oxygen were enclosed in a vessel of $10 \mathrm{L}$ capacity at ${27}^{\mathrm{o}}\mathrm{C}$. Calculate the partial pressure of each gas and calculate the total pressure of gaseous mixture.