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A gas expends from 2 L to 6L against a c...

A gas expends from `2 L` to `6L` against a constant pressure of `0.5` atm on absobing `200 J` of heat. Calculate the change in internal energy.

Text Solution

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To calculate the change in internal energy (ΔU) of the gas, we can use the first law of thermodynamics, which states: \[ \Delta U = Q - W \] where: - \( \Delta U \) is the change in internal energy, ...
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An ideal gas absorbs 600cal of heat during expansion from 10L to 20L against the constant pressure of 2atm . Calculate the change in internal enegry.

When 100J of heat is given to an ideal gas it expands from 200cm^(3) to 400cm^(3) at a constant pressure of 3 xx 10^(5) Pa . Calculate (a) the change in internal energy of the gas (b) the number of moles in the gas if the initial temperature is 400K , (c ) the molar heat capacity C_(p) at constant pressure and (d) the molar heat capacity C_(v) at constant volume. [R = (25)/(3)J//mol-K]

Knowledge Check

  • A gas is allowed to expand in a well insulated container against a constant external pressure of 2.5 atm from an initial volume of 2.50 L to a final volume of 4.50 L. The change in internal energy DeltaU of the gas in joules will be

    A
    1136.25 J
    B
    `-500 J`
    C
    -505 J
    D
    +505 J

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