Chemistry
Grade-9
Easy
Question
Gases increases the volume upon decrease in pressure and ________________ in temperature.
- Increase
- Decrease
- Increases and then decreases
- None of these
Hint:
V = nRT/P
The correct answer is: Increase
We know,
PV= nRT 
V = nRT/P
Volume increases, but pressure is decreased and hence temperature has to increase.
Related Questions to study
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
Chemistry
What is the unit of pressure in an S.I system?
What is the unit of pressure in an S.I system?
ChemistryGrade-9
ESS
We know that the greenhouse effect is natural, then why today's climate change has become a serious issue?
We know that the greenhouse effect is natural, then why today's climate change has become a serious issue?
ESSGrade-9
ESS
What will happen to the climate, if we stop burning fossil fuels today?
What will happen to the climate, if we stop burning fossil fuels today?
ESSGrade-9
ESS
How are humans contributing to greenhouse gas effect?
How are humans contributing to greenhouse gas effect?
ESSGrade-9
ESS
CFC’s play important role in greenhouse effect by_________.
CFC’s play important role in greenhouse effect by_________.
ESSGrade-9
ESS
Assertion: CO2 is a major greenhouse gas.
Reason: Increase in CO2 level leads to decrease in Earth’s temperature.
Assertion: CO2 is a major greenhouse gas.
Reason: Increase in CO2 level leads to decrease in Earth’s temperature.
ESSGrade-9
ESS
Select the consequences associated with climate change.
Select the consequences associated with climate change.
ESSGrade-9
ESS
Loss of ice present in sea by melting __________.
Loss of ice present in sea by melting __________.
ESSGrade-9
