Cooking is fast in a pressure cooker, because
Food particles are effectively smashed
Water boils at higher temperature inside the pressure cooker
Food is cooked at constant volume
Loss of heat due to radiation is minimum
Related Questions
Which of the following will increase with the increase in temperature?
Surface tension
Viscosity
Molality
Vapour pressure
In order to increase the volume of a gas by 10%, the pressure of the gas should be
Increased by 10%
Increased by 1%
Decreased by 10%
Decreased by 1%
Equal volumes of two gases are kept in separate containers at the same temperature and pressure. Then:
Masses of the two gases are same
Molecular structure of two gases would be similar
The two gases contain the same number of molecules
The two gases, if allowed to diffuse would do so at the same rate
Which of the following will increase with the increase in temperature?
Surface tension
Viscosity
Molality
Vapour pressure
At a constant temperature, if the volume of a fixed mass of gas is halved, what happens to its pressure according to Boyle's Law?
It halves
It doubles
It remains the same
It quadruples
The density of a gas is twice that of a gas at the same temperature. The molecular weight of gas is thrice that of . The ratio of the pressures acting on and will be
1/6
6
3/2
2/3
The forces present in the crystals of naphthalene are:
Van der Waals’ forces
Electrostatic forces
Hydrogen bonding
None of these
The condition of SATP refers for:
0°C and 101.3 kPa
25°C and 100 kPa
20°C and 100 kPa
25°C and 1 atm
Introduction of absolute scale of thermometry is the result of:
Gaseous law
Graham’s law
Charles’ law
Dalton’s law
Gay-Lussac’s law of combining volume is applicable for those gases which on mixing:
Do not react
React with each other
Diffuse
All of these
