A balloon is filled with helium at a pressure of 2.4 105 Pa. The balloon is
Question:
A balloon is filled with helium at a pressure of 2.4 × 105 Pa. The balloon is at a temperature of 18 °C and has a radius of 0.25 m.
(a) How many helium atoms are contained in the balloon?
(b) Suppose we double the number of helium atoms in the balloon, keeping the pressure and the temperature fixed. By what factor does the radius of the balloon increase? Explain.
Step by Step Answer:
Picture the Problem A spherical balloon is filled with helium gas at a specified temperature and pre...View the full answer
Related Video
Helium and hydrogen balloons from a chemistry perspective is the atomic structure of the gases. While both helium and hydrogen balloons can achieve lift and rise into the atmosphere, the choice between the two gases is mainly based on safety considerations. Helium is non-flammable and non-reactive, making it a safer choice than hydrogen, which is highly flammable and can react with oxygen in the air to form water vapor. As a result, helium is the gas of choice for most commercial and recreational balloons, while hydrogen is only used in specialized applications where its high lifting power is necessary and the risks can be mitigated. Buoyancy is the upward force that is exerted on an object when it is immersed in a fluid (in this case, air). This force is equal to the weight of the fluid displaced by the object. When a balloon is filled with helium or hydrogen gas, it becomes lighter than the surrounding air because these gases have a lower density than air. As a result, the upward buoyant force on the balloon is greater than the downward force of gravity, causing the balloon to rise into the air. The amount of lift generated by a balloon depends on several factors, including the volume of the balloon, the amount of gas it contains, and the weight of the balloon and any attached objects. A larger balloon or one filled with more gas will generate more lift, while a heavier object attached to the balloon will require more lift to be generated to keep it aloft.
Students also viewed these Mechanics questions
-
A spherical balloon is made from an amount of material whose mass is 3.00 kg. The thickness of the material is negligible compared to the 1.50-m radius of the balloon. The balloon is filled with...
-
A balloon is filled with helium at atmospheric pressure. The skin of the balloon has a mass of 2.8 kg and the volume of the balloon is 16 m3. What is the greatest weight that this balloon can lift?
-
A balloon 20m in diameter is filled with helium at a gauge pressure of 2.0atm. A man is standing in a basket suspended from the bottom of the balloon. A restraining cable attached to the basket keeps...
-
Data visualization can help Broadway theatre analysts to understand ticket pricesExample: Recall the Service Company Insight box How Much Did You Pay for That Seat? presented in the chapter. As...
-
Compute the rms value of the voltage given by the wave form shown in figure. v(t) (V) 10 t(s) 10
-
Thomas was sent a credit card through the mail by a company that had taken his name and address from the telephone book. Because he never requested the card, Thomas left the card lying on his desk. A...
-
E18-2 Financial reporting during bankruptcy Use the following information in answering questions 1 and 2: Hal Company filed for protection from creditors under Chapter 11 of the bankruptcy act on...
-
In Chapter 7, you developed a use case diagram, an activity diagram, and a system sequence diagram for the use cases Rent movies and Return movies. In Chapter 11 you developed a first-cut DCD and...
-
If the auditor has doubts about the clients ability to continue as a going concern: The auditor can still issue an unmodified opinion if management has a plan that can be effectively implemented. The...
-
Joey complained to his mom that it wasn't fair that his younger sister lizzie was almost as tall as he was worried that he wasn't growing fast enough ?How should Rena respond to Joey's concern?
-
A balloon contains 3.9 liters of nitrogen gas at a temperature of 84 K and a pressure of 101 kPa. If the temperature of the gas is allowed to increase to 28 C and the pressure remains constant, what...
-
A bicycle tire with a volume of 0.00212 m3 is filled to its recommended absolute pressure of 495 kPa on a cold winter day when the tire's temperature is 15 C. The cyclist then brings his bicycle into...
-
Yahoo.coms finance Internet site provides summary financial information about public companies, such as stock quotes, recent financial filings with the Securities and Exchange Commission, and recent...
-
How have your organizations performed relative to improving healthcare quality and meeting the required standards (Medicare metrics) for value-based purchasing initiatives?
-
/ Precalculus Algebra Problem. 1: Consider the function f(x)=-5x5 + +-4. How many terms in f(x) are not monomials? Problem. 2: Consider the function f(x)=-3x-4x - 3x + 12. How many terms in f(x) are...
-
D 0
-
What NaCl concentration results when 279 mL of a 0.680 M NaCl solution is mixed with 462 mL of a 0.450 M NaCl solution? concentration: M
-
Use JavaFX's shape's classes from javafx.scene.shape package to complete the following questions (Hint: CANNOT use any Gaphics or Graphics2D classes from java.awt packages): DO not write the whole...
-
Name the three major types of blood cells.
-
Q1) What is the a3 Value Q2) What is the a7 Value Q3) What is the a4 Value Q4) What is the b3 Value Q5) What is the b2 Value Q6) What is the sign of 2nd constraint? A pastry chef at a bakery wants to...
-
Given three lightbulbs and a battery, sketch as many different circuits as you can.
-
1. (a) A group of resistors connected in parallel have the same (i) Current in them, (ii) Potential difference across them, or (iii) Neither of the above. (b) A group of resistors connected in series...
-
1. (a) The equivalent resistance of a group of resistors connected in parallel is (i) Greater than any of the resistors in the group, (ii) Less than any of the resistors in the group, or (iii)...
-
En prenant un exemple de votre choix, montrer comment on value un swap de taux de change.
-
How much would you need to invest today in order to receive: a. $10,000 in 5 years at 11%? b. $11,000 in 12 years at 8%? c. $12,000 each year for 10 years at 8%? d. $12,000 at the beginning of each...
-
A company that manufactures pulse Doppler insertion flow meters uses the Straight Line method for book depreciation purposes. Newly acquired equipment has a first cost of $190,000 with a 3-year life...
Study smarter with the SolutionInn App