Home
Class 9
CHEMISTRY
Give reasons Need of mentioning temper...

Give reasons
Need of mentioning temperature and pressure while stating its volume

Text Solution

AI Generated Solution

**Step-by-Step Text Solution:** 1. **Understanding Gas Behavior**: Gases do not have a definite volume; they expand to fill the container they are in. This means that the volume of a gas can change depending on external conditions. 2. **Effect of Temperature**: When the temperature of a gas increases, the kinetic energy of the gas molecules increases. This causes the gas to expand, leading to an increase in volume. Conversely, if the temperature decreases, the gas molecules lose energy, and the gas contracts, resulting in a decrease in volume. 3. **Effect of Pressure**: Pressure also plays a crucial role in determining the volume of a gas. According to Boyle's Law, if the pressure on a gas increases, its volume decreases, and if the pressure decreases, the volume increases. This is because gas molecules are forced closer together under higher pressure, reducing the space they occupy. ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • STUDY OF GAS LAWS

    ICSE|Exercise TOPIC 1 (2 Marks Questions ) |14 Videos
  • STUDY OF GAS LAWS

    ICSE|Exercise TOPIC 1 (3 Marks Questions ) |17 Videos
  • SPECIMEN PAPER 3

    ICSE|Exercise SECTION II|35 Videos
  • STUDY OF THE FIRST ELEMENT - HYDROGEN

    ICSE|Exercise TOPIC 2 Properties of Hydrogen, Oxidation nd Reduction (5 MARKS QUESTIONS)|29 Videos

Similar Questions

Explore conceptually related problems

Give reasons It is necessary to specify the pressure and temperature of gas while stating its volume.

At a given volume and temperature the pressure of a gas

Knowledge Check

  • Assertion:At low temperature , particles of matter occupy fixed positions and exist in solid state. Reason : Under a given set of conditions of temperature and pressure , the state of a substance depends upon the net effect of thermal energy and intermolecular forces.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false
    D
    If both assertion and reason are false
  • What is the effect on the pressure of a gas if its temperature is increased at constant volume ?

    A
    The pressure of the gas increases.
    B
    The pressure of the gas decreases .
    C
    The pressure of the gas remains same .
    D
    The pressure of the gas becomes half.
  • Similar Questions

    Explore conceptually related problems

    The volumes of gases A, B, C and D are in the ratio, 1:2:2:4 under the same conditions of temperature and pressure. If the temperature and the pressure of gas A are kept constant, then what will happen to its volume when the number of molecules is doubled?

    The volume of 1 mol of a gas at standard temperature and pressure is .

    An ideal gas is initially at temperature T and volume V. Its volume is increased by DeltaV due to an increase in temperature DeltaT, pressure remaining constant. The quantity delta=(DeltaV)/(VDeltaT) varies with temperature as

    At 18^@C , the volume occupied by the gas is 400 ml. To what temperature, it should be heated so that its volume gets doubled at constant pressure?

    For an ideal gas the fractional change in its volume per degree rise in temperature at constant pressure is equal to [T is absolute temperature of gas]

    State the second law of thermodynamics. Predict the sign of DeltaS in the following change at constant temperature and pressure. Give reason in support of your answer. CaCO_3(s) to CaO(s) + CO_2(g)