If R = universal gas constant, amount of heat needed to raise temperature of 2 ,mol of an ideal

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11.Thermodynamics

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If $R =$ universal gas constant, the amount of heat needed to raise the temperature of $2 \,mol$ of an ideal monatomic gas from $273\, K$ to $373\, K$ when no work is done is-

A

$100\, R$

B

$150 \,R$

C

$300\, R$

D

$500\, R$

Solution

$\Delta Q=\Delta U=n C_{V} \Delta T$

$=2 \times \frac{3 R}{2} \times 100=300 R$

Standard 11

Physics

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