Question -
One mole of an ideal monatomic gas requires 210 J heat to raise the temperature by 10 K, when heated at constant pressure. If the same gas is heated at constant volume to raise the temperature by 10 K then heat required is
Options:
A .  238 J
B .  126 J
C .  210 J
D .  350 J
Answer: Option B : B (△Q)P = μCP△T and (△Q)V = μCV△T ⇒(△Q)V(△Q)P = CvCp = 32R52R = 35 [∵(CV)mono=32R,(CP)mono=52R] ⇒(△Q)V = 35×(△Q)P = 35×210=126J
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