Ideal gas is contained in a thermally insulated and rigid container and it is heated through a resistance 100- by passing a current of 1A for five minutes- then change in internal energy of the gas is

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Standard XII

Chemistry

Internal Energy

Ideal gas is ...

Question

Ideal gas is contained in a thermally insulated and rigid container and it is heated through a resistance $100 Ω$ by passing a current of $1 A$ for five minutes, then change in internal energy of the gas is

0 k J

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30 k J

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10 k J

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20 k J

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Solution

The correct option is C $30 k J$
$Δ W = 0$
$∴ Δ Q = Δ U$
$Δ Q = Δ U = I^{2} R Δ t = 1^{2} (100) (5 \times 60) = 30 k J$

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Ideal gas is contained in a thermally insulated and rigid container and it is heated through a resistance 100Ω by passing a current of 1A for five minutes, then change in internal energy of the gas is

The correct option is C 30kJΔW=0∴ΔQ=ΔUΔQ=ΔU=I2RΔt=12(100)(5×60)=30kJ

Ideal gas is contained in a thermally insulated and rigid container and it is heated through a resistance $100 Ω$ by passing a current of $1 A$ for five minutes, then change in internal energy of the gas is

The correct option is C $30 k J$
$Δ W = 0$
$∴ Δ Q = Δ U$
$Δ Q = Δ U = I^{2} R Δ t = 1^{2} (100) (5 \times 60) = 30 k J$