Câu hỏi:

23/02/2025 68

Số mol khí trong quả bóng thám không (thời tiết) được thả vào không gian là?

A. 6,65 kmol

B. 66,5 mol

C. 665 mol

Đáp án chính xác

D. 665 kmol

Xem lời giải

Câu hỏi trong đề: (2025) Đề thi thử Đánh giá năng lực ĐHQG Hồ Chí Minh năm 2025 có đáp án (Đề 3) !!

Trả lời:

Giải bởi Vietjack

Đáp án đúng là C

Phương pháp giải

Đề bài đã cho các giá trị p, V, T và yêu cầu tính số mol là n

Sử dụng phương trình Clapeyron: pV = nRT

Lời giải

Xét lượng khí trong bóng có các trạng thái: $\{\begin{cases} p = 105000 Pa \\ V = 15, 8 m^{3} \\ t = 27^{0} C = 27 + 273 = 300 K \end{cases}$

Số mol khí n sẽ được xác định trong công thức: pV = nRT

$\Rightarrow n = \frac{pV}{RT} = \frac{105000 .15, 8}{8, 31 .300} = 665 mol$

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Xem thêm các câu hỏi khác »

Số mol khí trong quả bóng thám không (thời tiết) được thả vào không gian là?

Nhà sách VIETJACK:

It’s not the sort of show you’d watch from start to finish, but it’s fun to _____ every now and then.

Which of the following best serves as a title for the passage?

What could be the best title for the passage?

Lisa: There is a music concert next weekend. – John: That sounds great! Who __________ there?

The student’s efforts were commendable, but they still struggled with the final exam.

Handcrafted pottery from Mexico, paired with vintage lamps, have made Jason’s apartment the center of attention at the party.

Which of the following best restates each of the given sentences?

Despite his initial reluctance, John eventually embraced the new project.

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Số mol khí trong quả bóng thám không (thời tiết) được thả vào không gian là?

Nhà sách VIETJACK:

It’s not the sort of show you’d watch from start to finish, but it’s fun to _____ every now and then.

Which of the following best serves as a title for the passage?

What could be the best title for the passage?

Lisa: There is a music concert next weekend. – John: That sounds great! Who __________ there?

The student’s efforts were commendable, but they still struggled with the final exam.

Handcrafted pottery from Mexico, paired with vintage lamps, have made Jason’s apartment the center of attention at the party.

Which of the following best restates each of the given sentences? Despite his initial reluctance, John eventually embraced the new project.

Bình luận

🔥 Đề thi HOT:

VIP +3 tháng ( 199,000 VNĐ )

VIP +6 tháng ( 299,000 VNĐ )

VIP +12 tháng ( 499,000 VNĐ )

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Which of the following best restates each of the given sentences?

Despite his initial reluctance, John eventually embraced the new project.