Content text Varsity Weekly-8 (Set-A) Solution.pdf
2 9. m~‡h©i ZvcgvÎv gvcv nq †Kvb _v‡g©vwgUv‡i- M ̈vm cvB‡ivwgUvi ev®úPvc cøvwUbvg †iva DËi: cvB‡ivwgUvi 10. GKLÐ eid Dci †_‡K f‚wg‡Z cwZZ n‡jv| G‡Z cZb kw3i 50% Zv‡c iƒcvšÍwiZ nIqvq eid LÐwUi GK-PZz_©vsk M‡j †Mj| LÐwU KZ km D”PZv n‡Z cwZZ n‡qwQj? 1.714 8.57 17.14 34.28 DËi: 17.14 e ̈vL ̈v: mgh 0.5 = 1 4 mLf 10 h 0.5 = 0.25 Lf h = 3.36 105 20 1.65 104 16.5 km 17.14 km 11. GKwU Kv‡b©v BwÃb 227C Ges 127C ZvcgvÎvi g‡a ̈ KvR K‡i| hw` BwÃb KZ...©K K...ZKv‡Ri cwigvY 500 J nq, Z‡e Zvc MÖvn‡K cÖZ ̈vL ̈vZ Zv‡ci cwigvY KZ n‡e? 2000 J 1500 J 500 J 1000 J DËi: 2000 J e ̈vL ̈v: = 1 – T2 T1 = 1 – 400 500 = 1 5 Q1 – Q2 = W 5W – Q2 = W ∵ = W Q1 4W = Q2 Q2 = 4 500 = 2000 J 12. †KvbwU iƒ×Zvcxq cÖwμqvi †jL? T S T S T S T S DËi: T S e ̈vL ̈v: iƒ×Zvcxq cÖwμqvq GbUawc aaæe _v‡K| 13. ̄^vfvweK ZvcgvÎv I Pv‡c †Kv‡bv Av`k© M ̈vm‡K m‡gvò cÖwμqvq Pvi ̧Y AvqZ‡b cÖmvwiZ Kiv n‡jv| P‚ovšÍ Pvc KZ? 0.33 P1 3P1 9P1 0.25 P1 DËi: 0.25 P1 e ̈vL ̈v: P1V1 = P2V2 P1 V = P2 4V P1 = 4P2 P2 = P1 4 = 0.25 P1 14. GKwU wmwjÛv‡i ivLv wKQz cwigvY M ̈vm cwi‡ek †_‡K 700 J Zvckw3 †kvlY Kivq M ̈v‡mi Aš’t ̄’ kw3 500 J e„w× cvq| M ̈vm KZ...©K cwi‡e‡ki Ici K...ZKvR KZ? 200 J – 200 J 1200 J – 1200 J DËi: 200 J e ̈vL ̈v: dQ = dU + dW 700 J = 500 J + dW dW = 200 J 15. Zvc Dr‡mi ZvcgvÎv 500 K I Zvc MÖvn‡Ki ZvcgvÎv 1000 K| Zvc Drm †_‡K 200 J Zvc MÖnY Ki‡j, Zvc MÖvn‡K KZ Zvc eR©b Ki‡e? 250 J 2500 J 5000 J 400 J DËi: 400 J e ̈vL ̈v: T1 T2 = Q1 Q2 500 1000 = 200 Q2 Q2 = 400 J 16. ̄^vaxbZvi gvÎvi cwi‡cÖwÿ‡Z Av‡cwÿK Zv‡ci AbycvZ CP CV – 1 + f 3 1 + 2 f 1 + f 2 1 + 1 f DËi: 1 + 2 f e ̈vL ̈v: CP CV = Avevi, = 1 + 2 f CP CV = 1 + 2 f 17. iæ×Zvcxq cÖwμqvq e ̄`i †h Zvcxq ag© w ̄’i _v‡K Zv‡K e‡jÑ G›Uawc Gb_vjwc w ̄’i Zvcxq Ae ̄’v iæ× Zvcxq Ae ̄’v DËi: G›Uawc 18. ZvcMwZwe` ̈vi 1g m~Î g~jZ †Kvb m~‡Îi we‡kl iƒc? fi‡e‡Mi wbZ ̈Zvi m~Î kw3i wbZ ̈Zvi m~Î e‡q‡ji m~Î Pvj©‡mi m~Î DËi: kw3i wbZ ̈Zvi m~Î 19. wb‡¤œi mwVK mgxKiY †KvbwU? H = E + nRT H = H + nRT nRT = E + H †Kv‡bvwUB bq DËi: H = E + nRT
Tiếng Việt