is benzyl carbocation or tertiary carbocation more stable ?

As benzyl carbocation is stable by resonance and tertiary carbocation is stable by Hyperconjugation. And as resonance is more effective than other. So benzyl carbocation is more stable then tertiary carbocation. For isobaric process and n = 1. dQ = 5/2 RdT + RdT = 7/2RdT. And dW = RdT. So ratio of dQ/dT is 7/2.Hope it clears. If still u have doubts then please clarify. If u like answer then please approve the answer.

Sorry for mixing answer of another question due to some reason. As benzyl carbocation is stable by resonance and tertiary carbocation is stable by Hyperconjugation. And as resonance is more effective than other. So benzyl carbocation is more stable then tertiary carbocation. Hope it clears. If still u have doubts then please clarify. If u like answer then please approve the answer.