Chemistry
Grade-9
Easy
Question
Which of the following relationships is correct?
- PF = A
Hint:
Pressure is the force applied perpendicular to the surface of an object per unit area.
The correct answer is:
Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Various units are used to express pressure.
Pressure = Force/Area 
P = F/A
Related Questions to study
Chemistry
The number of molecules in 22.4 liters of a gas measured under standard temperature and pressure conditions is equal to Avogadro’s number.
The number of molecules in 22.4 liters of a gas measured under standard temperature and pressure conditions is equal to Avogadro’s number.
ChemistryGrade-9
Chemistry
Gases have high intermolecular spaces between the molecules; this is because
Gases have high intermolecular spaces between the molecules; this is because
ChemistryGrade-9
Chemistry
Which of the following units are incorrect?
Which of the following units are incorrect?
ChemistryGrade-9
Chemistry
The barometer is used to measure_________.
The barometer is used to measure_________.
ChemistryGrade-9
Chemistry
The volume occupied by one mole of gas at STP is known as the ____________.
The volume occupied by one mole of gas at STP is known as the ____________.
ChemistryGrade-9
Chemistry
At constant volume for a fixed number of moles of gas, the pressure of the gas increases with the rise of temperature due to
At constant volume for a fixed number of moles of gas, the pressure of the gas increases with the rise of temperature due to
ChemistryGrade-9
Chemistry
The space occupied by a gas is _________the volume of its container.
The space occupied by a gas is _________the volume of its container.
ChemistryGrade-9
Chemistry
Gases increases the volume upon decrease in pressure and ________________ in temperature.
Gases increases the volume upon decrease in pressure and ________________ in temperature.
ChemistryGrade-9
Chemistry
___________ is the process of gradual mixing of two substances kept in contact by molecular motion.
___________ is the process of gradual mixing of two substances kept in contact by molecular motion.
ChemistryGrade-9
Chemistry
Which of the following statements are incorrect?
Which of the following statements are incorrect?
ChemistryGrade-9
Chemistry
Which of the following is the unit of pressure?
Which of the following is the unit of pressure?
ChemistryGrade-9
Chemistry
The product of pressure and volume of a gas has the unit of
The product of pressure and volume of a gas has the unit of
ChemistryGrade-9
Chemistry
Which application determines Avogadro’s las?
Which application determines Avogadro’s las?
ChemistryGrade-9
Chemistry
If the gas is heated at constant pressure. What happens to the density?
If the gas is heated at constant pressure. What happens to the density?
ChemistryGrade-9
Chemistry
Which of the following is independent of temperature for gas?
Which of the following is independent of temperature for gas?
ChemistryGrade-9
