Предмет: Физика, автор: Ponchik12356

к некоторому количеству газа подвели 250 дж тепла. газ расширился при постоянном давлении 100 кПа на о,оо1 м3. На  сколько джоулей изменилась его внутренняя энергия

Ответы

Автор ответа: evgorlova
5
работа газа  А=PΔV=100000*0.001=100Дж
Q=ΔU+A  первый закон термодинамики
ΔU=Q-A=250-100=150 Дж увеличилась на 150 Дж
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Complete the sentences with "used to" the match the sentences with the pictures:
1. Tom ..... (go) to parties every Saturday.
2. ..... Kate ..... (clean) the house on Saturdays? No, she didn't. She ..... (wash) her car.
3. Jill ..... (have) brilliant ideas.
4. Ann ..... (not drive) well. She ..... (have) lots of accidents.
5. ..... Mr. Smith and Mr. Baker ..... (play) musical instruments? No, they ..... (play) chess.
6. Ann ..... (not go) to the theatre. She ..... (go) to the library.
7. Mr. Smith ..... (smoke) two packets of cigarettes a day.
8. Kevin ..... (be) a salesman. He ..... (sell) a lot of things.
9. Jill ..... (not be) a teacher. She ..... (be) a doctor.
10. Tim ..... (go) to the dentist three times every month.
11. Chris ..... (not play) tennis. He ..... (play) golf with his friends.
12. Mr. Jones ..... (be) a very rich man but now he is completely broke.
13. Ann ..... (believe) in Father Christmas.
14. Kate ..... (be) in the army but she didn't like it.
15. Mr. Brown ..... (work) in a fancy restaurant as awaiter.
16. James .... (not be) a healthy person. He ..... (have) backache.
17. Peter ..... (drive) trusks all over the country.
18. Jack ..... (not stay) at home on Saturdays.
19. Paul and his wife ..... (work) on a farm.
20. John ..... (be) afraid of mice.
21. Patrick and his family ..... (sing) Christmas Carols at Christmas.
22. Jozeph ..... ( not work) as a bank clerk. He ..... (be) a private detective.
23. Mr. Baker ..... (not give) chocolates to his wife. He ..... (give) her flowers.
24. Thomas ..... (be) a very happy guy.