Q. At constant temperature, what happens to the pressure of a gas if its volume is doubled?
A.
Pressure doubles
B.
Pressure halves
C.
Pressure remains the same
D.
Pressure quadruples
Show solution
Solution
According to Boyle's Law, at constant temperature, pressure is inversely proportional to volume. If the volume is doubled, the pressure is halved.
Correct Answer:
B
— Pressure halves
Learn More →
Q. What happens to the density of a gas if its temperature is increased at constant pressure?
A.
Density increases
B.
Density decreases
C.
Density remains the same
D.
Density fluctuates
Show solution
Solution
According to the ideal gas law, if temperature increases at constant pressure, volume increases, leading to a decrease in density.
Correct Answer:
B
— Density decreases
Learn More →
Q. What is the effect of increasing the number of moles of gas in a container at constant volume and temperature?
A.
Pressure decreases
B.
Pressure increases
C.
Volume increases
D.
Temperature increases
Show solution
Solution
According to Avogadro's Law, increasing the number of moles of gas at constant volume and temperature will increase the pressure.
Correct Answer:
B
— Pressure increases
Learn More →
Q. What is the standard temperature and pressure (STP) for gases?
A.
0°C and 1 atm
B.
25°C and 1 atm
C.
0°C and 760 mmHg
D.
100°C and 1 atm
Show solution
Solution
Standard temperature and pressure (STP) for gases is defined as 0°C (273.15 K) and 1 atm (101.3 kPa).
Correct Answer:
A
— 0°C and 1 atm
Learn More →
Q. Which gas law describes the relationship between pressure and temperature at constant volume?
A.
Boyle's Law
B.
Charles's Law
C.
Avogadro's Law
D.
Gay-Lussac's Law
Show solution
Solution
Gay-Lussac's Law describes the relationship between pressure and temperature at constant volume, stating that pressure is directly proportional to temperature.
Correct Answer:
D
— Gay-Lussac's Law
Learn More →
Q. Which gas law describes the relationship between the volume and temperature of a gas at constant pressure?
A.
Boyle's Law
B.
Charles's Law
C.
Avogadro's Law
D.
Graham's Law
Show solution
Solution
Charles's Law states that the volume of a gas is directly proportional to its absolute temperature at constant pressure.
Correct Answer:
B
— Charles's Law
Learn More →
Showing 1 to 6 of 6 (1 Pages)
