Advertisements
Advertisements
प्रश्न
Convert −100° C to kelvin
Advertisements
उत्तर
−100° C to kelvin:
T(K) = t° C + 273.15
∴ T(K) = (– 100° C) + 273.15
= 173.15 K
APPEARS IN
संबंधित प्रश्न
What would be the mass of CO2 occupying a volume of 44 litres at 25°C and 750 mm pressure.
State (i) the three variables for gas laws and (ii) SI units of these variables.
What is meant by aqueous tension? How is the pressure exerted by a gas corrected to account for aqueous tension?
State the following:
The absolute temperature of a gas at 7°C
Answer in one sentence.
A bubble of methane gas rises from the bottom of the North sea. What will happen to the size of the bubble as it rises to the surface?
Convert the following temperature from degree Celcius to kelvin.
25° C
Convert the following pressure value into Pascals.
10 atmosphere
Convert the following pressure value into Pascals.
1 kPa
Convert the following pressure value into Pascals.
107000 Nm−2
Convert the following pressure value into Pascals.
1 atmosphere
Convert 89 kPa to newton per square metre (Nm−2)
Convert 101.325 kPa to bar.
Identify the gas laws from the following diagram.
| Diagram | Gas laws |
![]() |
______________ |
Identify the gas laws from the following diagram.
| Diagram | Gas laws |
![]() |
______________ |
Consider a sample of a gas in a cylinder with a movable piston.

Show diagrammatically the changes in the position of the piston, if the temperature is decreased from 400 K to 300 K, and pressure is decreased from 4 bar to 3 bar.
Write the statement for Boyle’s law
With the help of the graph answer the following -

At constant temperature, Identify the law.
Solve the following.
The volume of a given mass of a gas at 0°C is 2 dm3. Calculate the new volume of the gas at constant pressure when the temperature is decreased by 10°C.
Solve the following.
A hot air balloon has a volume of 2800 m3 at 99°C. What is the volume if the air cools to 80°C?

Assertion: Critical temperature of CO2 is 304 K, it can be liquefied above 304 K.
Reason: For a given mass of gas, volume is to directly proportional to pressure at constant temperature
State Boyle's law.
Name two items that can serve as a model for Gay Lusaac’s law and explain.
Explain the following observation.
The size of a weather balloon becomes larger and larger as it ascends up to larger altitude
At 25°C and 1 atm, a cylinder containing 10 L of an ideal gas is connected to the empty cylinder with a capacity of 20 L. The pressures exerted by gas m both the cylinders will be ____________.
A certain sample of gas has a volume of 0.2 L at one atmosphere pressure and 273.15 K. What is the volume of gas at 273.15°C at same pressure?
Volume of a balloon at 25°C and 1 bar pressure is 2.27 L. If the pressure of the gas in balloon is reduced to 0.227 bar, what is the rise in volume of a gas?
At what temperature the volume of a gas becomes absolutely zero?
A gas occupies a volume of 4.2 dm3 at 101 kPa pressure. What volume will gas occupy if the pressure is increased to 235 kPa keeping the temperature constant?
If 2 moles of an ideal gas at 546 K has volume of 44.8 L, then what will be it's pressure? (R = 0.082)
If 300 mL of a gas at 26.85°C is cooled to 6.85°C at constant pressure. What will be the final volume of gas?


