Following figure shows two processes A and B   for a gas. If ∆ Q A and ∆ Q B are the amount…

Following figure shows two processes $\mathrm{A}$ and $\mathrm{B}\mathrm{ }$ for a gas. If $∆{\mathrm{Q}}_{\mathrm{A}}$ and $∆{\mathrm{Q}}_{\mathrm{B}}$ are the amount of heat absorbed by the system in two cases, and $∆{\mathrm{U}}_{\mathrm{A}}$ and $∆{\mathrm{U}}_{\mathrm{B}}$ are changes in internal energies, respectively, then:

1. $∆{\mathrm{Q}}_{\mathrm{A}}< ∆{\mathrm{Q}}_{\mathrm{B}};\mathrm{ }∆{\mathrm{U}}_{\mathrm{A}}< ∆{\mathrm{U}}_{\mathrm{B}}$
2. $∆{\mathrm{Q}}_{\mathrm{A}}=\mathrm{ }∆{\mathrm{Q}}_{\mathrm{B}};\mathrm{ }∆{\mathrm{U}}_{\mathrm{A}}=\mathrm{ }∆{\mathrm{U}}_{\mathrm{B}}$
3. $∆{\mathrm{Q}}_{\mathrm{A}}> ∆{\mathrm{Q}}_{\mathrm{B}};\mathrm{ }∆{\mathrm{U}}_{\mathrm{A}}=\mathrm{ }∆{\mathrm{U}}_{\mathrm{B}}$
4. $∆{\mathrm{Q}}_{\mathrm{A}}> ∆{\mathrm{Q}}_{\mathrm{B}};\mathrm{ }∆{\mathrm{U}}_{\mathrm{A}}> ∆{\mathrm{U}}_{\mathrm{B}}$

Solution

Asked in: JEE Main 2019 (09 Apr Shift 1)

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